CN201935880U - Monitoring device for elements of gases in pipelines - Google Patents
Monitoring device for elements of gases in pipelines Download PDFInfo
- Publication number
- CN201935880U CN201935880U CN2010206987048U CN201020698704U CN201935880U CN 201935880 U CN201935880 U CN 201935880U CN 2010206987048 U CN2010206987048 U CN 2010206987048U CN 201020698704 U CN201020698704 U CN 201020698704U CN 201935880 U CN201935880 U CN 201935880U
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- monitoring system
- gas
- iodine
- enrichment
- pipeline
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Abstract
The utility model provides a monitoring device for elements of gases in pipelines, which comprises a sampling device, an element gathering device, a measuring unit, and further comprises a volume measuring device and an analyzing unit. The volume measuring device is arranged at downstream position of the elements gathering device and is provided with an induction trunk, an exhaust passage and a low-pressure forming module. The induction trunk is communicated with the elements gathering device and is provided with holes inside, and connecting portion of the induction trunk and the exhaust passage serves as an low-pressure area. The analyzing unit is used for obtaining containment of the elements of the gases in the pipelines according to outcomes of the measuring unit and the volume measuring device. The monitoring device for the elements of the gases in the pipelines has the advantages of high reliability, low cost and simple structure.
Description
Technical field
The utility model relates to the measurement of element, the particularly monitoring of element in the gas in the pipeline.
Background technology
Mercury is extremely toxic substance, even the mercury content in the environment is very low, also can be accumulated in the human body by food chain, thereby be detrimental to health.Therefore, press for some can the fast quantification testing environment in the method for Trace Hg.
Fig. 1 shows the monitoring system of mercury element in the interior gas of the pipeline that extensively adopts in the prior art, as shown in Figure 1, described monitoring system comprises: sampling probe 1, pipeline 2,4, enriching apparatus 4, X-ray fluorescence spectra analyser, air extractor 3,10 and volume measurement device 9.
Mercury has volatility, all remains on gaseous state in a lot of occasions, and in chimney, pipeline, and content is all lower, therefore needs enriching apparatus to come enrichment mercury to improve the sensitivity of mercury measurement, adopts the mercury in the filter membrane enriched gas usually.Common filter membrane can not enrichment simple substance mercury, therefore need carry out special processing to mercury or filter membrane.Present disposal route mainly contains following two kinds:
1, chlorine is added in the mercurous gaseous fluid, mercury and chlorine reaction generate mercuric chloride, use common filter membrane (as the PES film) absorption mercuric chloride.The weak point of this method is mainly: a, mercury and mercuric chloride have bigger vapour pressure under environment or flue-gas temperature, and mercury can not change into mercuric chloride fully; B, chlorine are toxic gases, and excessive chlorine jeopardizes people's life, also produce and pollute.
2, common filter membrane resinification is handled, be soaked in then in the iodine solution, be used for the absorption of mercury after drying.The weak point of this method is mainly: the time that this filter membrane is placed is long more, and the iodine loss is many more, and therefore, the film of this processing is difficult to long storage time.
The mercury of measuring is the interior total amount by mercury in the gas in all volumes of filter membrane of enrichment time, in order to know the mercury content in the gas in the unit volume, also need learn the volume that passes through the gas of filter membrane in the mercury enrichment time.Volume measurement device adopts mass flowmeter, mission life, measuring accuracy for the flowmeter that improves the quality effectively, reduce the engineering maintenance amount of mass flowmeter, also need to be provided for removing oiliness and the water washing tank 7 of acid ingredient gas in the gas, the condenser 8 that is used to dewater in the upstream of mass flowmeter.But complex structure, system maintenance trouble, deficiency that cost is high have been brought.
The utility model content
In order to solve above shortcomings in the prior art, the utility model provides the monitoring system of element in a kind of reliability height, the interior gas of pipeline simple in structure, that cost is low.
The purpose of this utility model is achieved through the following technical solutions:
The monitoring system of element in the gas comprises sampler, enrichment of element device, elements are contained unit in the pipeline, and characteristics are: described monitoring system also comprises:
Volume measurement device, described volume measurement device is arranged on the downstream of described enrichment of element device, has inlet channel, exhaust passage and low-pressure area and forms module; Described inlet channel is communicated with described enrichment of element device, and inside is provided with aperture, and connection place of described inlet channel and exhaust passage is a low-pressure area;
Analytic unit, described analytic unit is used for drawing according to the output result of measuring unit and volume measurement device the content of gas element in the pipeline.
According to above-mentioned monitoring system, described volume measurement device also has gas passage, and described low-pressure area is the breathing space, and described gas passage is communicated with described breathing space, and the interchannel angle of described inlet channel and gas is [0
o, 90 °], the angle of gas passage and exhaust passage is [90
o, 180
o], the angle between described inlet channel and exhaust passage is [90
o, 180
o]; It is source of the gas that described low-pressure area forms module, and described source of the gas is communicated with described gas passage.
According to above-mentioned monitoring system, described sampler comprises sampling probe, first pipeline and the module of bleeding, and on described first pipeline companion's thermal modules is set, and described enrichment of element device is communicated with described first pipeline by second pipeline.
According to above-mentioned monitoring system, described enrichment of element device comprises filter membrane and mobile module, and the control module in the described analytic unit connects described mobile module.
According to above-mentioned monitoring system, described measuring unit is x-ray fluorescence analyzer or Atomic Absorption Spectrometer.
According to above-mentioned monitoring system, described element is a mercury.
According to above-mentioned monitoring system, described enrichment of element device also comprises iodine or sulphur solution applying unit, is used for described iodine or sulphur solution are applied to the filter membrane that described mobile module is sent.
According to above-mentioned monitoring system, described iodine or sulphur solution applying unit adopt liquid-jet device, are used for iodine or sulphur solution are sprayed on filter membrane.
According to above-mentioned monitoring system, described iodine or sulphur solution applying unit adopt the container that iodine or sulphur solution are housed, and are used for iodine or sulphur solution are applied to filter membrane by this container.
According to above-mentioned monitoring system, described monitoring system further comprises heating arrangement, and described heating arrangement is arranged on the described volume measurement device.
According to above-mentioned monitoring system, as preferably, described volume measurement device is a membrane pump.
Compared with prior art, the beneficial effect that the utlity model has is:
1, system reliability height need not devices such as purge tank, condenser.Be convenient to safeguard, also reduced cost;
2, can fully mercury be converted into mercuric iodixde or mercuric sulphide.
Iodine or sulphur simple substance character are active, and iodine is sublimed into gas easily, just can react rapidly with mercury at normal temperatures, and react completely.
3, do not have storage problem, filter membrane contains the enrichment that just is used for mercury behind iodine or the sulphur solution after a few minutes applying.
4, need not to handle in advance filter membrane.
The utility model is to handle filter membrane in measure field, handles filter membrane in advance, time-consuming effort again, and prior art also need compare complex chemical treatment in order to fetter elemental iodine for a long time to common filter membrane.The utility model has been save these loaded down with trivial details and complicated processing procedures.
5, excess iodine and sulphur are almost pollution-free
Iodine and sulphur normal temperature are solid down, and the distillation of iodine is limited, therefore can not damage human body.
Description of drawings
With reference to accompanying drawing, disclosure of the present utility model will be easier to understand.Those skilled in the art are understood that easily: these accompanying drawings only are used to illustrate the technical solution of the utility model, and are not to be intended to protection domain of the present utility model is construed as limiting.Among the figure:
Fig. 1 is the basic block diagram according to monitoring system in the prior art of the present utility model;
Fig. 2 is the basic block diagram according to the monitoring system of the utility model embodiment 1;
Fig. 3 is the basic block diagram according to enrichment of element device in the monitoring system of the utility model embodiment 1;
Fig. 4 is the basic block diagram according to volume measurement device in the monitoring system of the utility model embodiment 1;
Fig. 5 is the process flow diagram according to the operation method of the monitoring system of the utility model embodiment 1;
Fig. 6 is the basic block diagram according to the sulphur solution applying unit of the utility model embodiment 2;
Fig. 7 is the basic block diagram according to the iodine solution applying unit of the utility model embodiment 3.
Embodiment
Fig. 2-7 and following declarative description optional embodiment of the present utility model how to implement with instruction those skilled in the art and reproduce the utility model.In order to instruct technical solutions of the utility model, simplified or omitted some conventional aspects.Those skilled in the art should understand that the modification that is derived from these embodiments or replace will be in scope of the present utility model.Those skilled in the art should understand that following characteristics can make up in every way to form a plurality of modification of the present utility model.Thus, the utility model is not limited to following optional embodiment, and is only limited by claim and their equivalent.
Embodiment 1:
Fig. 2 has schematically provided in the chimney of the utility model embodiment the basic block diagram of the monitoring system of element in the gas.As shown in Figure 2, described monitoring system comprises:
Sampling probe 1, described sampling probe is installed on the chimney.
Second pipeline 4, an end opening of described second pipeline 4 are in described first pipeline 2, and the other end is communicated with element enriching apparatus 6.
Enrichment of element device 6, described enrichment of element device 6 are used for elements such as the mercury, cadmium, arsenic of enrichment gas sampled.
Measuring unit, described measuring unit are used to measure elements such as mercury after the enrichment, cadmium, arsenic.
Analytic unit, described analytic unit is used for drawing according to the output result of measuring unit and volume measurement device the content of gas mercury in the chimney.
Fig. 3 has schematically provided the basic block diagram of the enriching apparatus of the utility model embodiment.As shown in Figure 3, described enriching apparatus comprises:
Mobile module comprises driving wheel 13, engaged wheel 11, and undressed filter membrane 12 is on engaged wheel 11, and the filter membrane of measuring is on driving wheel 13.
Iodine solution applying unit 21 is a liquid-jet device, is arranged on a side of filter membrane 12, can spray iodine solution in container when needs, and iodine solution is evenly distributed on the filter membrane 12.The solvent of iodine solution is a n-pentane.
Fig. 4 has schematically provided the basic block diagram of the volume measurement device of the utility model embodiment.As shown in Figure 4, described volume measurement device comprises:
Have inlet channel 51, gas passage 52 and exhaust passage 53, described volume measurement device is arranged on the downstream of described enrichment of element device, connection place of described inlet channel 51 and exhaust passage 53 is the breathing space, as low-pressure area 54, one end of described gas passage 52 is communicated with described breathing space, and the angle that described inlet channel 51 and gas passage are 52 is [0
o, 90 °], gas passage 52 is [90 with the angle of exhaust passage 53
o, 180
o], the angle that described inlet channel 51 and exhaust passage are 53 is [90
o, 180
o]; Described inlet channel 51 is communicated with described enrichment of element device, and described gas passage 52 is connected with the ambient atmos generator; Has through hole 55 in the described inlet channel 51.
Fig. 5 shows the operation method of the monitoring system of present embodiment, and as shown in Figure 5, described operation method may further comprise the steps:
(A1) get back in the described chimney behind the gas process sampling probe in the air extractor work, chimney, first pipeline;
The gases at high pressure that source of the gas provides pass through gas passage fast, expand in described breathing space afterwards, thereby generation low-pressure area, gas in the pipeline of winning is passed through after second pipeline, the enrichment of element device, by the aperture in the inlet channel, the gas that provides with source of the gas mixes and discharges by the exhaust passage afterwards with velocity of sound; , gas determines that the sectional area of aperture is also determined, therefore can learn the volume that passes through the gas of described aperture in the random time because passing through the flow velocity of aperture;
(A2) element to be measured in the enrichment of element device enrichment gas sampled, measuring unit records the element total amount to be measured that enrichment is got up in enrichment time, is specially:
Driving wheel coiling filter membrane, the iodine solution of liquid-jet device ejection appropriate amount, the iodine solution of ejection is distributed on the filter membrane; Filter membrane stopped several minutes afterwards, the solvent evaporates of iodine solution on the filter membrane, and iodine is stayed on the filter membrane;
Mercury in the gas sampled and the Iod R on the filter membrane, the mercuric iodixde of generation is adsorbed on the filter membrane, and simultaneously, elements such as the cadmium in the gaseous fluid, arsenic also can be adsorbed on the filter membrane;
The X-ray fluorescence spectra analyser is measured elements such as mercuric iodixde on the filter membrane and cadmium, arsenic, thereby knows in the enrichment time total amount of mercury, cadmium, arsenic etc. in the gas;
(A3) analytic unit is handled the total amount of mercury, cadmium, arsenic etc., passes through the volume of the gas of described aperture in described enrichment time, thereby knows the content of mercury, cadmium, arsenic etc. in the interior gas of chimney.
Benefit according to the monitoring system of the utility model embodiment 1 is: owing to be in operation, gas is certain by the flow velocity of aperture (sectional area is certain), therefore can determine in the random time gas volume, also i.e. gas volume by the enrichment of element device by aperture.Apply iodine in site of deployment, easy to operate, pollution-free.
Embodiment 2:
The monitoring system of element in the gas in the chimney, as different from Example 1:
Described monitoring system further comprises heating arrangement, described heating arrangement is arranged on the volume measurement device, prevent composition in the gas by volume measurement device the time because blocking channel is separated out in cooling, prolong the stream time of volume measurement device effectively, reduced the work maintenance.
Embodiment 3:
The monitoring system of element in the gas in the chimney, as different from Example 1:
1, volume measurement device adopts membrane pump, makes that gas passes through aperture with velocity of sound under the effect of described membrane pump.
2, Fig. 6 shows the basic block diagram of solution applying unit among the utility model embodiment 3, and shown in Fig. 6, sulphur solution applying unit 22 is the container of a sealing, fills sulphur solution in the container, and solvent is a carbon disulphide.Filter membrane 12 is mobile between carrying roller 221,222,223, and by the sulphur solution in the container, and keep sealing with container, avoid making the interior solution evaporation of container and amount discharge container.
3, detecting unit is cold steam Atomic Absorption Spectrometer.
Embodiment 4:
The monitoring system of element in the gas in the flue, as different from Example 3:
Fig. 7 shows the basic block diagram of solution applying unit among the utility model embodiment 4, as shown in Figure 7, carrying roller 222 connects control module, under the effect of control module, move up and down, make when needs apply sulphur solution, carrying roller 222 moves downward and is being with filter membrane 12 to enter sulphur solution, and when not needing to apply sulphur solution, carrying roller 222 moves upward and is being with filter membrane 12 to break away from sulphur solution.
Detecting unit adopts the X-ray fluorescence spectra analytical equipment, specifically with embodiment 1.
Claims (11)
1. the monitoring system of element in the interior gas of pipeline comprises sampler, enrichment of element device, measuring unit, and it is characterized in that: described monitoring system also comprises:
Volume measurement device, described volume measurement device is arranged on the downstream of described enrichment of element device, has inlet channel, exhaust passage and low-pressure area and forms module; Described inlet channel is communicated with described enrichment of element device, and inside is provided with aperture, and connection place of described inlet channel and exhaust passage is a low-pressure area;
Analytic unit, described analytic unit is used for drawing according to the output result of measuring unit and volume measurement device the content of gas element in the pipeline.
2. monitoring system according to claim 1 is characterized in that: described volume measurement device also has gas passage, and described low-pressure area is the breathing space, and described gas passage is communicated with described breathing space, and the interchannel angle of described inlet channel and gas is [0
o, 90 °], the angle of gas passage and exhaust passage is [90
o, 180
o], the angle between described inlet channel and exhaust passage is [90
o, 180
o]; It is source of the gas that described low-pressure area forms module, and described source of the gas is communicated with described gas passage.
3. monitoring system according to claim 1, it is characterized in that: described sampler comprises sampling probe, first pipeline and the module of bleeding, on described first pipeline companion's thermal modules is set, described enrichment of element device is communicated with described first pipeline by second pipeline.
4. monitoring system according to claim 1 is characterized in that: described enrichment of element device comprises filter membrane and mobile module, and the control module in the described analytic unit connects described mobile module.
5. monitoring system according to claim 1 is characterized in that: described measuring unit is x-ray fluorescence analyzer or Atomic Absorption Spectrometer.
6. monitoring system according to claim 1 is characterized in that: described element is a mercury.
7. monitoring system according to claim 4 is characterized in that: described enrichment of element device also comprises iodine or sulphur solution applying unit, is used for described iodine or sulphur solution are applied to the filter membrane that described mobile module is sent.
8. monitoring system according to claim 1 is characterized in that: described iodine or sulphur solution applying unit adopt liquid-jet device, are used for iodine or sulphur solution are sprayed on filter membrane.
9. monitoring system according to claim 1 is characterized in that: described iodine or sulphur solution applying unit adopt the container that iodine or sulphur solution are housed, and are used for iodine or sulphur solution are applied to filter membrane by this container.
10. monitoring system according to claim 1 is characterized in that: described monitoring system further comprises heating arrangement, and described heating arrangement is arranged on the described volume measurement device.
11. monitoring system according to claim 1 is characterized in that: described volume measurement device is a membrane pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206987048U CN201935880U (en) | 2010-12-31 | 2010-12-31 | Monitoring device for elements of gases in pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206987048U CN201935880U (en) | 2010-12-31 | 2010-12-31 | Monitoring device for elements of gases in pipelines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201935880U true CN201935880U (en) | 2011-08-17 |
Family
ID=44447398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206987048U Expired - Fee Related CN201935880U (en) | 2010-12-31 | 2010-12-31 | Monitoring device for elements of gases in pipelines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201935880U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103094A (en) * | 2010-12-31 | 2011-06-22 | 聚光科技(杭州)股份有限公司 | Monitoring system for element in gas in pipeline and operation method thereof |
| CN105731076A (en) * | 2016-03-23 | 2016-07-06 | 郭家彤 | Pneumatic conveying pipeline for gas-solid two-phase flow |
-
2010
- 2010-12-31 CN CN2010206987048U patent/CN201935880U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102103094A (en) * | 2010-12-31 | 2011-06-22 | 聚光科技(杭州)股份有限公司 | Monitoring system for element in gas in pipeline and operation method thereof |
| CN105731076A (en) * | 2016-03-23 | 2016-07-06 | 郭家彤 | Pneumatic conveying pipeline for gas-solid two-phase flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU FPI ENVIRONMENTAL PROTECTION TECHNOLOGY C Effective date: 20120329 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120329 Address after: Hangzhou City, Zhejiang province Binjiang District 310052 shore road 760 Co-patentee after: Hangzhou Juguang Environmental Protection Technology Co.,Ltd. Patentee after: Focused Photonics (Hangzhou) Inc. Address before: Hangzhou City, Zhejiang province Binjiang District 310052 shore road 760 Patentee before: Focused Photonics (Hangzhou) Inc. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20131231 |