CN111141560A - Dual-channel NOx concentration real-time monitoring device based on grid method mixed sampling - Google Patents
Dual-channel NOx concentration real-time monitoring device based on grid method mixed sampling Download PDFInfo
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- CN111141560A CN111141560A CN202010103284.2A CN202010103284A CN111141560A CN 111141560 A CN111141560 A CN 111141560A CN 202010103284 A CN202010103284 A CN 202010103284A CN 111141560 A CN111141560 A CN 111141560A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2211—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with cyclones
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
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Abstract
The invention discloses a dual-channel NOx concentration real-time monitoring device based on grid method mixed sampling, which comprises a grid method mixed sampling grid and a dual-channel measuring device, wherein the grid method mixed sampling grid is connected with the dual-channel measuring device. The invention has simple structure, low processing difficulty and low manufacturing cost, and is suitable for upgrading and transforming a single-point sampling flue gas on-line monitoring system (CEMS).
Description
The technical field is as follows:
the invention relates to a dual-channel NOx concentration real-time monitoring device based on grid method mixed sampling.
Background art:
in the denitration optimization modification aiming at the boiler flue gas, the concentration of NOx in the flue gas is generally required to be monitored on line in real time. At present, the flue gas is sampled and measured at a single point by a sampling probe of a flue gas online monitoring system (CEMS) in the market mainstream, but the single-point flue gas sample does not have representativeness due to the problems of uneven flow field distribution and the like of a flue, so that the measurement loses the accuracy. Meanwhile, a flue gas on-line monitoring system (CEMS) adopts single-channel sampling analysis, the concentration value of NOx in sample gas is obtained after flue gas is subjected to sampling and analysis processes, and the response of the whole system is delayed, so that the real-time performance of measurement is lost. In addition, the flue gas on-line monitoring system (CEMS) has a complex structure and large daily maintenance workload, and the operation of the flue gas on-line monitoring system (CEMS) needs to be suspended during maintenance, so that the operation of the flue gas denitration optimization system is influenced.
The invention content is as follows:
the invention provides a two-channel NOx concentration real-time monitoring device based on grid method mixed sampling, aiming at solving the problems in the prior art.
The technical scheme adopted by the invention is as follows:
a two-channel NOx concentration real-time monitoring device based on grid method mixed sampling comprises:
the grid method mixing sampling grid comprises communicating branch pipes, sampling branch pipes, a mixing main pipe and a negative pressure generating device, wherein two or more communicating branch pipes are connected and correspond to form a herringbone structure or a W-shaped structure, all the communicating branch pipes are mutually communicated and converged to the mixing main pipe, each communicating branch pipe is connected with a plurality of sampling branch pipes, 1 or more sampling ports are arranged on the sampling branch pipes, and the negative pressure generating device is connected with the mixing main pipe;
binary channels measuring device, binary channels measuring device includes NOx rapid survey appearance, blowback device, cyclone, probe fixed joint and collection flow joint, mix female pipe and include terminal and initiating terminal, mix the flue gas in female pipe by initiating terminal flow direction terminal, be equipped with the ash falling pipe on the terminal, collection flow joint installs on the ash falling pipe, cyclone and two probe fixed joints all are linked together with collection flow joint, and are linked together between cyclone and the probe fixed joint, and cyclone is linked together with the initiating terminal, and two measuring probe in the NOx rapid survey appearance correspond respectively and are fixed in on two probe fixed joint, the blowback device is installed on mixing female pipe, and is linked together with collection flow joint.
Furthermore, the back flushing device comprises a preheating cavity and a pipe fitting, the preheating cavity is welded on the mixing main pipe, the pipe fitting is communicated with the preheating cavity, and the preheating cavity is communicated with the confluence connector.
Furthermore, a standard gas pipe and a standard gas preheating cavity are further arranged on the starting end, the standard gas preheating cavity is welded on the mixing main pipe, the standard gas pipe is communicated with the standard gas preheating cavity, and the standard gas preheating cavity is communicated with the probe fixing connector.
Furthermore, two communicating pipes are connected to the confluence joint, the two probe fixing joints are correspondingly communicated with the confluence joint through the two communicating pipes, and the two probe fixing joints are communicated with each other through one communicating pipe.
Further, the vertical setting of mixing female pipe, the sample connection on the sample branch pipe is the slope mouth, is equipped with the deashing needle in the sample connection.
Furthermore, the communicating branch pipe and the sampling branch pipe are arranged inside the flue, one end of the mixing main pipe is arranged inside the flue, the other end of the mixing main pipe is arranged outside the flue, and the dual-channel measuring device is arranged outside the flue; wear-resistant angle steel or wear-resistant coatings are arranged on the windward sides of the sampling branch pipe, the communicating branch pipe and the mixing main pipe which are arranged in the flue; and a heat preservation layer or a heating heat preservation layer is arranged on the mixing main pipe arranged outside the flue and the double-channel measuring device.
Further, the negative pressure generating device is a jet pump or a fan.
Furthermore, a measuring probe on the NOx rapid measuring instrument is an in-line measuring probe, and the measuring probe is sealed and fixed with a probe fixing joint.
The invention has the following beneficial effects:
1) according to the invention, the flue is divided into a plurality of detection areas, the sampling ports are arranged in the detection areas, and the flue gas of the sampling ports is collected, mixed and detected, so that the accuracy of the flue gas on-line monitoring system (CEMS) is improved.
2) According to the invention, the NOx rapid measuring instrument and the probe are arranged to be inserted and installed nearby, so that the sampling time and the analysis time are effectively shortened, and the real-time performance of a flue gas on-line monitoring system (CEMS) is improved.
3) By arranging the dual-channel sampling and the unique back-blowing device, the invention effectively reduces the risk of blockage of the sampling channel and improves the stability of the flue gas on-line monitoring system (CEMS).
4) The invention has simple structure, low processing difficulty and low manufacturing cost, and is suitable for single-point sampling of a low-cost modified flue gas on-line monitoring system (CEMS).
Description of the drawings:
FIG. 1 is a front view of the present invention.
FIG. 2 is a front view of a grid-method hybrid sampling grid according to the present invention.
FIG. 3 is a side view of a gridline hybrid sampling grid of the present invention.
FIG. 4 is a front view of the dual channel measurement device of the present invention.
FIG. 5 is an isometric view of a dual channel measurement device of the present invention.
1. Grid method mixing sampling grid;
1-1, communicating branch pipes; 1-2, sampling branch pipes; 1-3, mixing the mother pipe; 1-4, a negative pressure generating device;
2. a dual channel measurement device;
2-1, a NOx rapid measuring instrument; 2-2, secondary sampling bypass; 2-3, a back flushing device; 2-4, a cyclone separator; 2-5, fixing a joint by using a probe; 2-6, a confluence joint; 2-7, communicating pipes; 2-8, preheating the cavity; 2-9, pipe fittings; 2-10, a standard gas inlet; 2-11, and preheating the cavity by the standard gas.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings.
Referring to fig. 1 to 5, the two-channel NOx concentration real-time monitoring device based on grid-method hybrid sampling of the present invention includes a grid-method hybrid sampling grid 1 and a two-channel measuring device 2 connected to the grid-method hybrid sampling grid 1.
The grid method mixed sampling grid 1 comprises communicating branch pipes 1-1, sampling branch pipes 1-2, a mixed main pipe 1-3 and a negative pressure generating device 1-4, wherein two or more communicating branch pipes 1-1 are connected and correspondingly form a herringbone structure or a W-shaped structure, the communicating branch pipes 1-1 are arranged inside a flue, all the communicating branch pipes 1-1 are mutually communicated and converged to the mixed main pipe 1-3, each communicating branch pipe 1-1 is connected with a plurality of sampling branch pipes 1-2, the sampling branch pipes 1-2 are provided with 1 or more sampling ports, the sampling ports are distributed inside the flue and meet the grid method requirements, and the negative pressure generating device 1-4 is connected with the mixed main pipe 1-3.
The flue gas sequentially passes through the sampling port, the sampling branch pipe 1-2, the communicating branch pipe 1-1, the mixing main pipe 1-3 and the negative pressure generating device 1-4 under the action of the self dynamic pressure and negative pressure generating device 1-4, and finally flows back to the inside of the flue.
The double-channel measuring device 2, the double-channel measuring device 2 comprises a NOx rapid measuring instrument 2-1, a back flushing device 2-3, a cyclone separator 2-4, a probe fixing connector 2-5 and a confluence connector 2-6, the mixing main pipe 1-3 comprises a terminal 1-31 and an initial end 1-32, smoke in the mixing main pipe 1-3 flows to the terminal 1-31 from the initial end 1-32, an ash falling pipe 1-33 is arranged on the initial end 1-32, the back flushing device 2-3 is arranged on the initial end 1-32, the confluence connector 2-6 is arranged on the ash falling pipe 1-33, the cyclone separator 2-4 and the two probe fixing connectors 2-5 are both communicated with the confluence connector 2-6, and the cyclone separator 2-4 is communicated with the probe fixing connectors 2-5, the confluence joint 2-6 and the cyclone separator 2-4 are both communicated with the starting end 1-32, and two measuring probes in the NOx rapid measuring instrument 2-1 are respectively and correspondingly fixed on the two probe fixed joints 2-5.
The cyclone separator 2-4, the probe fixing joint 2-5, the confluence joint 2-6 and the communicating pipe 2-7 jointly form a secondary sampling bypass 2-2. The sampled smoke enters the cyclone separator 2-3 from the starting end 1-32, the smoke with larger smoke content moves downwards and returns to the mixing main pipe 1-3 through the confluence joint 2-6, and the smoke with smaller smoke content moves upwards and returns to the starting end 1-32 after passing through the two parallel probe fixing joints 2-5.
The back blowing device 2-3 comprises a preheating cavity 2-8 and pipe fittings 2-9, in addition, a standard gas pipe 2-10 and a standard gas preheating cavity 2-11 are also arranged on an initial end 1-32, the preheating cavity 2-8 and the standard gas preheating cavity 2-11 are both welded on the initial end 1-32, the pipe fittings 2-9 are communicated with the preheating cavity 2-8, the standard gas pipe 2-10 is communicated with the standard gas preheating cavity 2-11, compressed air enters the preheating cavity 2-8 through the pipe fittings 2-9, flows through a confluence joint 2-6, a probe fixing joint 2-5 and a cyclone separator 2-4, and finally enters a mixing main pipe 1-3 to realize back blowing and ash removal of the compressed air.
In order to facilitate the installation and communication between the probe fixing joints 2-5 and the confluence joints 2-6, two communicating pipes 2-7 are connected on the confluence joints 2-6, the two probe fixing joints 2-5 are correspondingly communicated with the confluence joints 2-6 through the two communicating pipes 2-7, and the two probe fixing joints 2-5 are communicated through one communicating pipe. 2 probe fixed joints 2-2 are arranged in the dual-channel measuring device 2 and are respectively communicated with the confluence joints 2-6 through communicating pipes 2-7 to form parallel dual-channel sampling measurement.
The mixing main pipe 1-3 is vertically arranged, the communicating branch pipe 1-1 is vertical to the sampling branch pipe 1-2, a sampling port on the sampling branch pipe 1-2 is an inclined port, and an ash removal needle is arranged in the sampling port.
The communicating branch pipe 1-1 and the sampling branch pipe 1-2 are arranged inside the flue, one end of the mixing main pipe 1-3 is arranged inside the flue, the other end of the mixing main pipe is arranged outside the flue, and the dual-channel measuring device 2 is arranged outside the flue; wear-resistant angle steel or wear-resistant coatings are arranged on the windward sides of the sampling branch pipe 1-2, the communicating branch pipe 1-1 and the mixing main pipe 1-3 which are arranged in the flue; and the mixing main pipe 1-3 and the double-channel measuring device 2 which are arranged outside the flue are provided with heat insulating layers or heating heat insulating layers.
The negative pressure generating device 1-4 in the invention is a jet pump or a fan.
The measuring probe on the NOx rapid measuring instrument 2-1 is a direct-insertion type measuring probe, and the measuring probe and the probe fixing joint 2-5 are sealed and fixed.
The foregoing is only a preferred embodiment of this invention and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the invention and these modifications should also be considered as the protection scope of the invention.
Claims (8)
1. The utility model provides a binary channels NOx concentration real-time supervision device based on grid method mixed sampling which characterized in that: the method comprises the following steps:
the grid-method mixed sampling grid (1) comprises communicating branch pipes (1-1), sampling branch pipes (1-2), a mixed main pipe (1-3) and negative pressure generating devices (1-4), wherein two or more communicating branch pipes (1-1) are connected and correspondingly form a herringbone structure or a W-shaped structure, all the communicating branch pipes (1-1) are mutually communicated and converged to the mixed main pipe (1-3), each communicating branch pipe (1-1) is connected with a plurality of sampling branch pipes (1-2), 1 or more sampling ports are arranged on the sampling branch pipes (1-2), and the negative pressure generating devices (1-4) are connected with the mixed main pipe (1-3);
the double-channel measuring device (2) comprises a NOx rapid measuring instrument (2-1), a back flushing device (2-3), a cyclone separator (2-4), a probe fixing joint (2-5) and a confluence joint (2-6), wherein the mixing main pipe (1-3) comprises a terminal (1-31) and a starting end (1-32), smoke in the mixing main pipe (1-3) flows to the terminal (1-31) from the starting end (1-32), an ash falling pipe (1-33) is arranged on the terminal (1-31), the confluence joint (2-6) is arranged on the ash falling pipe (1-33), the cyclone separator (2-4) and the two probe fixing joints (2-5) are communicated with the confluence joint (2-6), and the cyclone separator (2-4) is communicated with the probe fixing joint (2-5), the cyclone separator (2-4) is communicated with the starting end (1-32), two measuring probes in the NOx rapid measuring instrument (2-1) are respectively and correspondingly fixed on the two probe fixing joints (2-5), and the back flushing device (2-3) is arranged on the mixing main pipe (1-3) and is communicated with the confluence joint (2-6).
2. The dual-channel real-time NOx concentration monitoring device based on grid-method mixed sampling as claimed in claim 1, wherein the back flushing device (2-3) comprises a preheating cavity (2-8) and a pipe fitting (2-9), the preheating cavity (2-8) is welded on the mixing main pipe (1-3), the pipe fitting (2-9) is communicated with the preheating cavity (2-8), and the preheating cavity (2-8) is communicated with the confluence joint (2-6).
3. The dual-channel real-time NOx concentration monitoring device based on grid method mixing sampling as claimed in claim 1, wherein the starting end (1-32) is further provided with a standard gas pipe (2-10) and a standard gas preheating cavity (2-11), the standard gas preheating cavity (2-11) is welded on the mixing main pipe (1-3), the standard gas pipe (2-10) is communicated with the standard gas preheating cavity (2-11), and the standard gas preheating cavity (2-11) is communicated with the probe fixing joint (2-5).
4. The dual-channel real-time NOx concentration monitoring device based on grid method mixed sampling as claimed in claim 1, wherein two communicating pipes (2-7) are connected to the confluence joint (2-6), the two probe fixing joints (2-5) are correspondingly communicated with the confluence joint (2-6) through the two communicating pipes (2-7), and the two probe fixing joints (2-5) are communicated with each other through one communicating pipe.
5. The dual-channel real-time NOx concentration monitoring device based on grid-method mixed sampling as claimed in claim 1, wherein the mixed main pipe (1-3) is vertically arranged, the sampling port on the sampling branch pipe (1-2) is an inclined port, and the ash removal needle is arranged in the sampling port.
6. The dual-channel real-time monitoring device for the concentration of NOx based on grid method mixed sampling according to claim 1, wherein the communicating branch pipe (1-1) and the sampling branch pipe (1-2) are arranged inside a flue, one end of the mixing main pipe (1-3) is arranged inside the flue, the other end of the mixing main pipe is arranged outside the flue, and the dual-channel measuring device (2) is arranged outside the flue; wear-resistant angle steel or wear-resistant coatings are arranged on the windward sides of the sampling branch pipe (1-2), the communicating branch pipe (1-1) and the mixing main pipe (1-3) which are arranged in the flue; and a heat-insulating layer or a heating heat-insulating layer is arranged on the mixing main pipe (1-3) arranged outside the flue and the double-channel measuring device (2).
7. The dual-channel real-time monitoring device for the NOx concentration based on grid method mixed sampling as claimed in claim 1, wherein the negative pressure generating device (1-4) is a jet pump or a fan.
8. The dual-channel real-time monitoring device for the NOx concentration based on grid method mixed sampling as claimed in claim 1, wherein the measuring probe on the NOx fast measuring instrument (2-1) is an in-line measuring probe, and the measuring probe is sealed and fixed with the probe fixing joint (2-5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010103284.2A CN111141560A (en) | 2020-02-20 | 2020-02-20 | Dual-channel NOx concentration real-time monitoring device based on grid method mixed sampling |
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| CN202010103284.2A CN111141560A (en) | 2020-02-20 | 2020-02-20 | Dual-channel NOx concentration real-time monitoring device based on grid method mixed sampling |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112755661A (en) * | 2021-04-08 | 2021-05-07 | 赛默飞世尔（上海）仪器有限公司 | Cyclone separator, gas particulate matter concentration detection equipment and concentration detection method |
| CN112858585A (en) * | 2021-01-12 | 2021-05-28 | 昆山卓丰电子科技有限公司 | Distributed VOCS sampling and measuring device |
| CN113433272A (en) * | 2021-08-05 | 2021-09-24 | 西安热工研究院有限公司 | Boiler flue gas multi-point drainage mixing detection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201207023Y (en) * | 2008-05-16 | 2009-03-11 | 韩琼 | On-line measurement system for boiler discharging flue gas field |
| CN104874269A (en) * | 2015-05-29 | 2015-09-02 | 山西大学 | System and method for synchronous implementation of online monitoring of mercury content in flue gas and mercury removal |
| CN108195786A (en) * | 2017-12-28 | 2018-06-22 | 安徽蓝盾光电子股份有限公司 | A kind of out of stock CEMS systems on-Line Monitor Device |
| CN109556928A (en) * | 2018-11-30 | 2019-04-02 | 国网山东省电力公司电力科学研究院 | A kind of fly ash sampling device and its operating method and its calibration measuring method |
-
2020
- 2020-02-20 CN CN202010103284.2A patent/CN111141560A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201207023Y (en) * | 2008-05-16 | 2009-03-11 | 韩琼 | On-line measurement system for boiler discharging flue gas field |
| CN104874269A (en) * | 2015-05-29 | 2015-09-02 | 山西大学 | System and method for synchronous implementation of online monitoring of mercury content in flue gas and mercury removal |
| CN108195786A (en) * | 2017-12-28 | 2018-06-22 | 安徽蓝盾光电子股份有限公司 | A kind of out of stock CEMS systems on-Line Monitor Device |
| CN109556928A (en) * | 2018-11-30 | 2019-04-02 | 国网山东省电力公司电力科学研究院 | A kind of fly ash sampling device and its operating method and its calibration measuring method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112858585A (en) * | 2021-01-12 | 2021-05-28 | 昆山卓丰电子科技有限公司 | Distributed VOCS sampling and measuring device |
| CN112755661A (en) * | 2021-04-08 | 2021-05-07 | 赛默飞世尔（上海）仪器有限公司 | Cyclone separator, gas particulate matter concentration detection equipment and concentration detection method |
| CN113433272A (en) * | 2021-08-05 | 2021-09-24 | 西安热工研究院有限公司 | Boiler flue gas multi-point drainage mixing detection device |
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