CN112304996A - Device and method for monitoring chloride ions in atmosphere - Google Patents
Device and method for monitoring chloride ions in atmosphere Download PDFInfo
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- CN112304996A CN112304996A CN202011180384.1A CN202011180384A CN112304996A CN 112304996 A CN112304996 A CN 112304996A CN 202011180384 A CN202011180384 A CN 202011180384A CN 112304996 A CN112304996 A CN 112304996A
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- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 title claims abstract description 254
- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000008021 deposition Effects 0.000 claims abstract description 96
- 238000001514 detection method Methods 0.000 claims abstract description 74
- 230000007246 mechanism Effects 0.000 claims abstract description 57
- 238000004804 winding Methods 0.000 claims abstract description 55
- 238000006073 displacement reaction Methods 0.000 claims description 17
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000013178 mathematical model Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 239000013077 target material Substances 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 229910052703 rhodium Inorganic materials 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 abstract description 3
- 230000003111 delayed effect Effects 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 description 9
- 230000007797 corrosion Effects 0.000 description 9
- 239000000460 chlorine Substances 0.000 description 7
- 229910052801 chlorine Inorganic materials 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- -1 salt ions Chemical class 0.000 description 7
- 230000006870 function Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000009614 chemical analysis method Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 238000004255 ion exchange chromatography Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000002798 spectrophotometry method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/22—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material
- G01N23/223—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by measuring secondary emission from the material by irradiating the sample with X-rays or gamma-rays and by measuring X-ray fluorescence
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
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- Pathology (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
The invention provides a device and a method for monitoring chloride ions in the atmosphere, which comprises a shell, a chloride ion detection system and a winding mechanism, wherein a chloride ion collecting carrier is a flexible belt wound into a cylindrical shape; the method comprises the following steps: installing a brand new reel type chlorine ion collecting carrier; after exposing the first section chlorine ion deposition area for a preset time, pulling the first section chlorine ion deposition area to a detection position and detecting the first section chlorine ion deposition area; detecting a second chloride ion deposition area when the detection of the first chloride ion deposition area is finished; when the whole reel type chlorine ion collecting carrier is used up, the reel type chlorine ion collecting carrier is replaced by a new reel type chlorine ion collecting carrier, and the monitoring is continuously carried out. The invention not only skillfully solves the technical problem of discontinuous monitoring process of the content of the chloride ions in the atmospheric environment, but also solves the technical problems of long acquisition period, delayed analysis data and easy saturation of sampling.
Description
Technical Field
The invention belongs to the technical field of chloride ion monitoring, and particularly relates to a device and a method for monitoring chloride ions in the atmosphere.
Background
Atmospheric corrosion refers to a corrosion phenomenon of materials and products thereof in an atmospheric environment, and is one of the most common environmental corrosion forms. In the atmospheric environment, oxygen, moisture, soluble salt ions and various corrosive media in the environment are condensed on the surface of the material to form a thin liquid film due to the capillary action, the adsorption action or the chemical condensation action of the material and products thereof. The existence of the liquid film changes the electrochemical state of the metal surface, so that a corrosion primary battery is formed in a local area of the metal surface, corrosion current is generated, and the corrosion is promoted to occur and develop. The corrosion under the thin liquid layer in the atmospheric environment is mainly influenced by various factors such as the thickness and the shape of the liquid film, the content of a corrosion medium, the pH value of the liquid film and the like in the electrochemical process, wherein the content of chloride ions on the surface of a product is an important factor influencing the corrosion rate, and therefore, the monitoring of the content of the chloride ions in the atmosphere is very important.
At present, chlorine ions in the atmosphere are collected at home and abroad by means of a chlorine ion collecting device and an artificial collecting method, the typical structure of the collecting device is provided by document CN205015201U, the collecting device comprises a collecting bottle and a chlorine ion collecting device inserted into the collecting bottle, the collecting bottle comprises a bottle body and a liquid collecting disc filled with a solution, the liquid collecting disc is installed at the lower part of the bottle body, the chlorine ion collecting device comprises a column core, a clamping groove, a clamp hoop and tubular gauze, the tubular gauze is sleeved on the column core, the clamping groove clamps and seals the gauze above the column core, the clamp hoop fixes and inserts the gauze in the middle of the column core into a bottle opening, and the free end of the gauze naturally droops and is immersed into the solution in the bottle. However, the device has the problems of discontinuous monitoring process, long acquisition period, delayed analysis data and poor data accuracy, and the sampling is easy to saturate, which is not beneficial to rapidly realizing the evaluation of the chloride ion deposition rate in the ocean atmosphere. In addition, chlorine ions in the atmospheric environment are monitored mainly by collecting the chlorine ions in a laboratory through a washing mode and detecting the content of the chlorine ions by using chemical analysis methods such as spectrophotometry, gas chromatography, ion chromatography and the like. Although the detection limit can reach ppb level by the mode, the detection process has great dependence on manpower, and has the disadvantages of complex operation, large error and low efficiency.
Disclosure of Invention
The present invention is directed to an apparatus and method for monitoring chloride ions in the atmosphere, which is used to solve at least one of the problems mentioned in the background.
In order to achieve the above object, the present invention adopts the following technical solutions.
The utility model provides a device of chloride ion in monitoring atmosphere, includes casing and chloride ion detecting system, is provided with through-hole, its characterized in that on the casing:
the chlorine ion detection system comprises an X-ray generator and a detector which are symmetrically arranged and respectively connected with computer equipment, the X-ray generator and the detector are installed on a displacement mechanism, the symmetry line of the X-ray generator and the detector is perpendicular to the detected surface of the chlorine ion collection carrier, the X-ray emitted by the X-ray generator is used for exciting the chlorine ions on the detected surface to emit characteristic fluorescent rays, and the detector is used for receiving the chlorine ion characteristic fluorescent rays reflected by the detected surface;
the processor of the computer device implements the following steps when executing the program: controlling an X-ray generator to emit characteristic X-rays, converting chloride ion characteristic fluorescent rays received by a detector into current signals and transmitting the current signals to a data processing module, and calculating chloride ion deposition rate according to a pre-established mathematical model V = f (I)/t & s, wherein V represents chloride ion deposition rate, f (I) represents chloride ion content (a function for calculating chloride ion content), I represents chloride ion characteristic fluorescent X-ray intensity, t represents exposure time of a chloride ion deposition area, and s represents detection area; and displaying the collected (calculated) chloride ion content and the chloride ion deposition rate through a display terminal;
the device also comprises a winding mechanism, the chlorine ion collecting carrier is a flexible belt wound into a barrel shape, the chlorine ion collecting carrier is arranged on the rotating shaft in an initial state, the chlorine ion collecting carrier is connected with the winding part and is wound through the winding part in the using process, the chlorine ion collecting carrier positioned between the rotating shaft and the winding part is divided into two parts, one part is positioned in the shell as a detected surface, and the other part is exposed in the atmospheric environment as a chlorine ion deposition area.
As one preferable scheme of the invention, the winding mechanism consists of a rotating shaft and a winding part, the rotating shaft is positioned in the shell, the winding part is positioned outside the shell, the rotating shaft and the winding part are positioned on the same plane, and the through hole is used as a boundary line between the detected surface and the chlorine ion deposition area.
As the second preferred scheme of the invention, the winding mechanism consists of a rotating shaft, a winding part and a guide mechanism, wherein the guide mechanism is positioned at the through hole and is used as a boundary line between the detected surface and the chloride ion deposition area.
As a further preferred scheme, the guide mechanism and the rotating shaft are respectively positioned at two sides of the through hole in the shell, the rotating shaft and the guide mechanism are positioned on the same transverse plane, the guide mechanism and the winding part are positioned on the same longitudinal plane, and the chloride ion deposition area is just positioned at the through hole and is transversely arranged.
As a further preferred scheme, the guiding mechanism and the rotating shaft are respectively located at two sides of the through hole in the housing, the rotating shaft and the guiding mechanism are located on the same oblique plane, and the guiding mechanism and the winding part are located on the same longitudinal plane and are arranged obliquely.
In order to facilitate the monitoring according to time periods, a detection identification starting point and an end point are arranged on the chloride ion collecting carrier, the detected surface and the chloride ion deposition area are respectively positioned between the detection identification starting point and the detection identification end point, the detected surface and the chloride ion deposition area have the same specification, and the specification is the same, namely the material, the size, the area and the thickness are the same.
In a specific application scheme of the invention, the target material of the X-ray generator is Ag, Au, W or Rh, the emission voltage of the X-ray generator is 1-70kV, and the emission current is 1-200 muA; the material of the detector window is Be or C, the effective detection area is 10-70mm2, and the energy resolution is not higher than 150 eV; the vertical distances from the emitting end of the X-ray generator and the middle part of the detector window to the detected surface are both 0.5-1 cm.
Preferably, the chlorine ion collecting carrier is gauze or thin-walled iron belt wound into a cylinder, and the thickness of the iron belt is not more than 0.5 mm.
The method for monitoring the chloride ions in the atmosphere by adopting the device comprises the following steps:
and 6, repeating the step 4 and the step 5, replacing the reel type chlorine ion collecting carrier with a new reel type chlorine ion collecting carrier after the whole reel type chlorine ion collecting carrier is used up, and continuously monitoring.
As an alternative, the preset detection point is one detection point or a plurality of detection points; the preset detection area is a single linear track on the detected surface, a plurality of linear tracks on the detected surface or the whole detected surface. The area of the preset detection point or the area of the preset detection area refers to a detection area s in the mathematical model.
The device and the method not only skillfully solve the technical problem of discontinuous monitoring process of the content of the chloride ions in the atmospheric environment, but also can realize continuous monitoring by only using one set of device, solve the technical problems of long acquisition period and delayed analysis data, more importantly solve the technical problem of easy saturation of sampling, are favorable for quickly and accurately evaluating the content of the chloride ions and the deposition rate of the chloride ions in the atmospheric environment, and have great significance for the development of monitoring technology in the atmospheric environment.
The device provided by the invention has the advantages of simple structure, easy operation, stable and reliable detection result, environment-friendly use and the like, can automatically, quickly and efficiently detect the content of chloride ions on the surface of a product and the deposition rate of the chloride ions in an atmospheric environment, is beneficial to monitoring the content and the change condition of the chloride ions for a long time, is suitable for monitoring the content of the chloride ions and the deposition rate of the chloride ions in various atmospheric environments such as industrial atmosphere and marine atmospheric environment, and has wide application prospect.
Drawings
FIG. 1 is a schematic view of an apparatus for detecting the content of chloride ions in an atmospheric environment in example 1;
FIG. 2 is a schematic view of an apparatus for detecting the content of chloride ions in an atmospheric environment in example 2;
FIG. 3 is a schematic view of an apparatus for detecting the content of chloride ions in the atmospheric environment in example 3;
FIG. 4 is a partial schematic view of a chlorine ion-collecting carrier in an example;
FIG. 5 is a side view of the novel chlorine ion collecting carrier in the example.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments, but the following embodiments are only used for understanding the principle of the present invention and the core idea thereof, and do not limit the scope of the present invention. It should be noted that modifications to the invention as described herein, which do not depart from the principles of the invention, are intended to be within the scope of the claims which follow.
Example 1
As shown in fig. 1, a device for monitoring chloride ions in the atmosphere comprises a housing 7 and a chloride ion detection system, wherein a through hole 11 is arranged on the housing 7, and wherein:
the chloride ion detection system comprises an X-ray generator 1 and a detector 2 which are symmetrically arranged and respectively connected with computer equipment 3, wherein the X-ray generator 1 and the detector 2 are arranged on a displacement mechanism, the symmetry line of the X-ray generator 1 and the detector 2 is perpendicular to a detected surface 12 of a chloride ion collecting carrier, X-rays emitted by the X-ray generator 1 are used for exciting chloride ions on the detected surface 12 to emit characteristic fluorescent rays, and the detector 2 is used for receiving the chloride ion characteristic fluorescent rays reflected by the detected surface 12;
the computer device 3 comprises a memory, a processor and a program stored on the memory and executable on the processor, the processor implementing the following steps when executing the program: controlling an X-ray generator 1 to emit X-rays, converting chloride ion characteristic fluorescent X-rays received by a detector 2 into current signals, transmitting the current signals to a data processing module, reading current signal data, and calculating chloride ion deposition rate according to a pre-established mathematical model V = f (I)/t s, wherein V represents chloride ion deposition rate, f (I) represents chloride ion content (a function for calculating chloride ion content), I represents chloride ion characteristic fluorescent X-ray intensity (the chloride ion characteristic fluorescent X-ray intensity is determined according to the corresponding photoelectron quantity, namely determined according to the corresponding current signals, the more the chloride ion characteristic fluorescent photoelectron quantity is, the stronger the current signals are, t represents exposure time of a chloride ion deposition area, and s represents detection area; finally, the acquired (calculated) chloride ion content and the chloride ion deposition rate are displayed through a display terminal;
the target material of the X-ray generator 1 can be Ag, the emission voltage of the X-ray generator 1 can be selected within a range of 1-70kV, and the emission current can be selected within a range of 1-200 muA; the detector window can Be made of Be or C, and the effective detection area can Be set to 10-70mm2The energy resolution is not higher than 123 eV;
the device also comprises a winding mechanism, the chlorine ion collecting carrier is a flexible belt 14 (shown in figure 5) wound into a cylinder shape, the chlorine ion collecting carrier is installed on the rotating shaft 9 in an initial state, in the using process, the chlorine ion collecting carrier is connected with the winding part 6 and winds the chlorine ion collecting carrier through the winding part 6, the chlorine ion collecting carrier positioned between the rotating shaft 9 and the winding part 6 is divided into two parts, one part is positioned in the shell 7 as a detected surface 12, and the other part is exposed to the atmospheric environment as a chlorine ion deposition area 10.
In this embodiment, the winding mechanism is composed of a rotating shaft 9 and a winding part 6, a protective cover 13 is disposed around the rotating shaft 9, the rotating shaft 9 is located in the housing 7, the winding part 6 is located outside the housing 7, the rotating shaft 9 and the winding part 6 are located on the same plane, and the through hole 11 is used as a boundary between the detected surface 12 and the chloride ion deposition area 10.
In this embodiment, a detection recognition starting point 15 and an end point 16 (as shown in fig. 4) are disposed on the chloride ion collecting carrier, the detected surface 12 and the chloride ion deposition area 10 are respectively located between the detection recognition starting point 15 and the detection recognition end point 16, and the detected surface 12 and the chloride ion deposition area 10 have the same specification. In use, after the chlorine ion collecting carrier is pulled once, the adjacent detection and identification starting points 15 and the adjacent detection and identification end points 16 advance by a standard distance which is approximately equal to the length of a single detected surface 12 and the length of a single chlorine ion deposition area 10.
The method for monitoring the chloride ions in the atmosphere by adopting the device in the embodiment comprises the following steps:
and 6, repeating the step 4 and the step 5, and replacing the reel type chlorine ion collecting carrier with a new reel type chlorine ion collecting carrier after the whole reel type chlorine ion collecting carrier is used up.
Example 2
As shown in fig. 2, a device for monitoring chloride ions in the atmosphere comprises a housing 7 and a chloride ion detection system, wherein a through hole 11 is arranged on the housing 7, and wherein:
the chloride ion detection system comprises an X-ray generator 1 and a detector 2 which are symmetrically arranged and respectively connected with computer equipment 3, wherein the X-ray generator 1 and the detector 2 are arranged on a displacement mechanism, the symmetry line of the X-ray generator 1 and the detector 2 is perpendicular to a detected surface 12 of a chloride ion collecting carrier, X-rays emitted by the X-ray generator 1 are used for exciting chloride ions on the detected surface 12 to emit characteristic fluorescent rays, and the detector 2 is used for receiving the chloride ion characteristic fluorescent rays reflected by the detected surface 12;
the computer device 3 comprises a memory, a processor and a program stored on the memory and executable on the processor, the processor implementing the following steps when executing the program: controlling an X-ray generator 1 to emit X-rays, converting chloride ion characteristic fluorescent X-rays received by a detector 2 into current signals, transmitting the current signals to a data processing module, reading current signal data, and calculating chloride ion deposition rate according to a pre-established mathematical model V = f (I)/t s, wherein V represents chloride ion deposition rate, f (I) represents chloride ion content (a function for calculating chloride ion content), I represents chloride ion characteristic fluorescent X-ray intensity (the chloride ion characteristic fluorescent X-ray intensity is determined according to the corresponding photoelectron quantity, namely determined according to the corresponding current signals, the more the chloride ion characteristic fluorescent photoelectron quantity is, the stronger the current signals are, t represents exposure time of a chloride ion deposition area, and s represents detection area; finally, the acquired (calculated) chloride ion content and the chloride ion deposition rate are displayed through a display terminal;
the target material of the X-ray generator 1 can be Rh, the emission voltage of the X-ray generator 1 can be selected to be 1-70kV, and the emission current can be selected to be 1-200 muA; the detector window can Be made of Be or C, and the effective detection area can Be set to 10-70mm2The energy resolution is not higher than 110 eV;
the device also comprises a winding mechanism, the chlorine ion collecting carrier is a flexible belt 14 (shown in figure 5) wound into a cylinder shape, the chlorine ion collecting carrier is installed on the rotating shaft 9 in an initial state, in the using process, the chlorine ion collecting carrier is connected with the winding part 6 and winds the chlorine ion collecting carrier through the winding part 6, the chlorine ion collecting carrier positioned between the rotating shaft 9 and the winding part 6 is divided into two parts, one part is positioned in the shell 7 as a detected surface 12, and the other part is exposed to the atmospheric environment as a chlorine ion deposition area 10.
In this embodiment, the winding mechanism is composed of a rotating shaft 9, a winding part 6 and a guiding mechanism 8, the guiding mechanism 8 is located at the through hole 11, and the guiding mechanism is used as a boundary between the detected surface 12 and the chloride ion deposition area 10. The guide mechanism 8 and the rotating shaft 9 are respectively positioned at two sides of a through hole 11 in the shell 7, the rotating shaft 9 and the guide mechanism 8 are positioned on the same transverse plane, the guide mechanism 8 and the coiling part 6 are positioned on the same longitudinal plane, and the chloride ion deposition area 10 is just positioned at the through hole 11 and is transversely arranged.
In this embodiment, a detection recognition starting point 15 and an end point 16 (as shown in fig. 4) are disposed on the chloride ion collecting carrier, the detected surface 12 and the chloride ion deposition area 10 are respectively located between the detection recognition starting point 15 and the detection recognition end point 16, and the detected surface 12 and the chloride ion deposition area 10 have the same specification.
The method for monitoring the chloride ions in the atmosphere by adopting the device in the embodiment comprises the following steps:
and 6, repeating the step 4 and the step 5, and replacing the reel type chlorine ion collecting carrier with a new reel type chlorine ion collecting carrier after the whole reel type chlorine ion collecting carrier is used up.
Example 3
As shown in fig. 3, a device for monitoring chloride ions in the atmosphere comprises a housing 7 and a chloride ion detection system, wherein a through hole 11 is arranged on the housing 7, and wherein:
the chloride ion detection system comprises an X-ray generator 1 and a detector 2 which are symmetrically arranged and respectively connected with computer equipment 3, wherein the X-ray generator 1 and the detector 2 are arranged on a displacement mechanism, the symmetry line of the X-ray generator 1 and the detector 2 is perpendicular to a detected surface 12 of a chloride ion collecting carrier, X-rays emitted by the X-ray generator 1 are used for exciting chloride ions on the detected surface 12 to emit characteristic fluorescent rays, and the detector 2 is used for receiving the chloride ion characteristic fluorescent rays reflected by the detected surface 12;
the computer device 3 comprises a memory, a processor and a program stored on the memory and executable on the processor, the processor implementing the following steps when executing the program: controlling an X-ray generator 1 to emit X-rays, converting chloride ion characteristic fluorescence X-rays received by a detector 2 into current signals, transmitting the current signals to a data processing module, reading current signal data, and calculating chloride ion deposition rate according to a pre-established mathematical model V = f (I)/t & s, wherein V represents chloride ion deposition rate, f (I) represents chloride ion content (a function for calculating chloride ion content), and I represents chloride ion characteristic fluorescence X-ray intensity (chloride ion content)The intensity of the sub-characteristic fluorescence X-ray is determined according to the corresponding photoelectron quantity, namely the intensity is determined through the corresponding current signal, the more the number of the fluorescence photoelectrons of the chloride ion characteristic is, the stronger the current signal is, t represents the exposure time of the chloride ion deposition area, and s represents the detection area; finally, the acquired (calculated) chloride ion content and the chloride ion deposition rate are displayed through a display terminal; the target material of the X-ray generator 1 can be W, the emission voltage of the X-ray generator 1 can be selected within a range of 1-70kV, and the emission current can be selected within a range of 1-200 muA; the detector window can Be made of Be or C, and the effective detection area can Be set to 10-70mm2The energy resolution is not higher than 115 eV;
the device also comprises a winding mechanism, the chlorine ion collecting carrier is a flexible belt 14 (shown in figure 5) wound into a cylinder shape, the chlorine ion collecting carrier is installed on the rotating shaft 9 in an initial state, in the using process, the chlorine ion collecting carrier is connected with the winding part 6 and winds the chlorine ion collecting carrier through the winding part 6, the chlorine ion collecting carrier positioned between the rotating shaft 9 and the winding part 6 is divided into two parts, one part is positioned in the shell 7 as a detected surface 12, and the other part is exposed to the atmospheric environment as a chlorine ion deposition area 10.
In this embodiment, as shown in fig. 3, the winding mechanism is composed of a rotating shaft 9, a winding part 6 and a guiding mechanism 8, a protective cover 13 is disposed around the rotating shaft 9, the protective cover 13 is a part of the housing 7, and the guiding mechanism 8 is disposed at the through hole 11 and is used as a boundary between the detected surface 12 and the chloride ion deposition area 10. The guide mechanism 8 and the rotating shaft 9 are respectively positioned at two sides of a through hole 11 in the shell 7, the rotating shaft 9 and the guide mechanism 8 are positioned on the same inclined plane, and the guide mechanism 8 and the coiling part 6 are positioned on the same longitudinal plane and are arranged in an inclined mode. With such a structure, the wind direction can be captured more conveniently and more accurately and chloride ions can be deposited.
In this embodiment, a detection recognition starting point 15 and an end point 16 (as shown in fig. 4) are disposed on the chloride ion collecting carrier, the detected surface 12 and the chloride ion deposition area 10 are respectively located between the detection recognition starting point 15 and the detection recognition end point 16, and the detected surface 12 and the chloride ion deposition area 10 have the same specification.
The method for monitoring the chloride ions in the atmosphere by adopting the device in the embodiment comprises the following steps:
and 6, repeating the step 4 and the step 5, and replacing the reel type chlorine ion collecting carrier with a new reel type chlorine ion collecting carrier after the whole reel type chlorine ion collecting carrier is used up.
In the present invention, the wavelength of the X-ray generator 1 is determined by calculation according to the formula E = hc/λ.
In the embodiments of the present invention: the shell 7 can adopt a built wall body or a box-type structure made of baffles; the winding part 6 is connected with the motor 4 through a transmission element 5 (a transmission rod or a transmission belt) and is driven by the motor 4; the displacement mechanism is a mechanism capable of adjusting displacement in at least three dimensions of XYZ.
Claims (10)
1. The utility model provides a device of chlorine ion in monitoring atmosphere, includes casing (7) and chlorine ion detecting system, is provided with through-hole (11) on casing (7), its characterized in that:
the chloride ion detection system comprises an X-ray generator (1) and a detector (2) which are symmetrically arranged and respectively connected with computer equipment (3), wherein the X-ray generator (1) and the detector (2) are installed on a displacement mechanism, the symmetry line of the X-ray generator (1) and the detector (2) is perpendicular to a detected surface (12) of a chloride ion collecting carrier, the X-ray emitted by the X-ray generator (1) is used for exciting chloride ions of the detected surface (12) to emit characteristic fluorescent rays, and the detector (2) is used for receiving the chloride ion characteristic fluorescent rays reflected by the detected surface (12);
the processor of the computer device (3) implements the following steps when executing the program:
controlling an X-ray generator (1) to emit characteristic X-rays, converting chloride ion characteristic fluorescent rays received by a detector (2) into current signals and transmitting the current signals to a data processing module, and calculating chloride ion deposition rate according to a pre-established mathematical model V = f (I)/t s, wherein V represents chloride ion deposition rate, f (I) represents chloride ion content, I represents chloride ion characteristic fluorescent X-ray intensity, t represents exposure time of a chloride ion deposition area, and s represents detection area; and displaying the collected chloride ion content and the chloride ion deposition rate through a display terminal;
the device also comprises a winding mechanism, the chlorine ion collecting carrier is a flexible belt wound into a barrel shape, the chlorine ion collecting carrier is installed on the rotating shaft (9) in an initial state, in the using process, the chlorine ion collecting carrier is connected with the winding part (6) and is wound through the winding part (6), the chlorine ion collecting carrier positioned between the rotating shaft (9) and the winding part (6) is divided into two parts, one part is positioned in the shell (7) as a detected surface (12), and the other part is exposed in the atmospheric environment as a chlorine ion deposition area (10).
2. The apparatus of claim 1, wherein: the winding mechanism consists of a rotating shaft (9) and a winding part (6), the rotating shaft (9) is positioned in the shell (7), the winding part (6) is positioned outside the shell (7), the rotating shaft (9) and the winding part (6) are positioned on the same plane, and the through hole (11) is used as a boundary line between the detected surface (12) and the chlorine ion deposition area (10).
3. The apparatus of claim 1, wherein: the winding mechanism consists of a rotating shaft (9), a winding part (6) and a guide mechanism (8), wherein the guide mechanism (8) is positioned at the through hole (11) and is used as a boundary line between the detected surface (12) and the chlorine ion deposition area (10).
4. The apparatus of claim 3, wherein: the guide mechanism (8) and the rotating shaft (9) are respectively positioned at two sides of a through hole (11) in the shell (7), the rotating shaft (9) and the guide mechanism (8) are positioned on the same transverse plane, the guide mechanism (8) and the winding part (6) are positioned on the same longitudinal plane, and the chloride ion deposition area (10) is just positioned at the through hole (11) and is transversely arranged.
5. The apparatus of claim 3, wherein: the guide mechanism (8) and the rotating shaft (9) are respectively positioned at two sides of the through hole (11) in the shell (7), the rotating shaft (9) and the guide mechanism (8) are positioned on the same inclined plane, and the guide mechanism (8) and the winding part (6) are positioned on the same longitudinal plane and are arranged in an inclined mode.
6. The apparatus of any one of claims 1-5, wherein: the chlorine ion collecting carrier is provided with a detection and identification starting point (15) and an end point (16), the detected surface (12) and the chlorine ion deposition area (10) are respectively positioned between the detection and identification starting point (15) and the detection and identification end point (16), and the specifications of the detected surface (12) and the chlorine ion deposition area (10) are the same.
7. The apparatus of claim 6, wherein: the target material of the X-ray generator (1) is Ag, Au, W or Rh, the emission voltage of the X-ray generator (1) is 1-70kV, and the emission current is 1-200 muA; the material of the detector window is Be or C, the effective detection area is 10-70mm2, and the energy resolution is not higher than 150 eV; the vertical distances from the emitting end of the X-ray generator (1) and the middle part of the detector window to the detected surface (12) are both 0.5-1 cm.
8. The apparatus of claim 7, wherein: the chlorine ion collecting carrier is gauze or thin-wall iron belt wound into a cylinder shape.
9. The method for testing a device according to any of claims 1-8, wherein the steps comprise:
step 1, mounting a brand-new reel type chlorine ion collecting carrier on a rotating shaft (9), pulling out a free end of the reel type chlorine ion collecting carrier and fixing the free end on a coiling part (6), wherein a first section of chlorine ion deposition area (10) is just exposed in an atmospheric environment;
step 2, after the first section of chloride ion deposition area (10) is exposed for a preset time, starting a rolling part (6) to start rolling the chloride ion collection carrier, so that the first section of chloride ion deposition area (10) is pulled to the front of the X-ray generator (1) and the detector (2) and then is paused, and at the moment, the first section of chloride ion deposition area (10) serves as a first detected surface (12);
step 3, adjusting a displacement mechanism to enable a symmetrical line of the X-ray generator (1) and the detector (2) to be perpendicular to a first detected surface (12), and enabling the vertical distances from the emission end of the X-ray generator (1) and the detector window to the surface of the sample to be 0.5-1 cm;
step 4, continuing to adjust the displacement mechanism to enable the X-ray emitted by the X-ray generator (1) to be aligned to a detection point of the first detected surface (12), starting the X-ray generator (1), and detecting according to a preset detection point or a preset detection area;
step 5, after the first section of the chloride ion deposition area (10) is detected and the second section of the chloride ion deposition area (10) is just exposed for a preset time, the winding part (6) continues to wind the chloride ion collecting carrier, so that the second section of the chloride ion deposition area (10) is pulled to the front of the X-ray generator (1) and the detector (2), at the moment, the first detected surface (12) is just wound, and the second section of the chloride ion deposition area (10) is used as a second detected surface (12);
and 6, repeating the step 4 and the step 5, and replacing the reel type chlorine ion collecting carrier with a new reel type chlorine ion collecting carrier after the whole reel type chlorine ion collecting carrier is used up.
10. The detection method according to claim 8, characterized in that: the preset detection point is one detection point or a plurality of detection points; the preset detection area is a single linear track on the detected surface (12), a plurality of linear tracks on the detected surface (12) or the whole detected surface (12).
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Effective date of registration: 20231121 Address after: 400039 Chongqing Jiulongpo Yuzhou Road No. 33 Patentee after: Southwest Institute of technology and engineering of China Ordnance Equipment Group Address before: 400039 Chongqing Jiulongpo Yuzhou Road No. 33 Patentee before: NO 59 Research Institute OF CHINA ORDNACE INDUSTRY |