CN215768378U - Device for monitoring concentration of chloride ions in air in real time - Google Patents
Device for monitoring concentration of chloride ions in air in real time Download PDFInfo
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- CN215768378U CN215768378U CN202121731112.6U CN202121731112U CN215768378U CN 215768378 U CN215768378 U CN 215768378U CN 202121731112 U CN202121731112 U CN 202121731112U CN 215768378 U CN215768378 U CN 215768378U
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Abstract
The utility model provides a device for monitoring the concentration of chloride ions in air in real time, which comprises: a receiving part having a sealed receiving chamber formed therein; the air guide assembly is connected with the accommodating part and communicated with the accommodating cavity, and the air guide assembly leads ambient air into the accommodating cavity at a first flow rate and then discharges the ambient air; the water guide assembly is connected with the accommodating part and communicated with the accommodating cavity, and the water guide assembly leads the pure water into the accommodating cavity at a second flow rate and then discharges the pure water; the ion concentration detection component comprises a chloride ion selection electrode arranged in the accommodating cavity and a processor electrically connected with the chloride ion selection electrode. The real-time potential in the salt spray elution solution is detected through the ion concentration detection part, the concentration of chloride ions in the salt spray elution solution can be calculated according to the real-time potential, and then the real-time concentration of sodium chloride in the air can be calculated according to the flow of the ambient air and the flow of the pure water.
Description
Technical Field
The utility model relates to the technical field of air salt spray concentration detection, in particular to a device for monitoring the concentration of chloride ions in air in real time.
Background
Salt spray refers to a dispersion system consisting of tiny droplets containing salt in the atmosphere. The main cause of the method is that a large amount of foam and bubbles are generated due to the violent disturbance of sea water in the ocean, the breaking of wind waves, the bank beating of sea waves and the like, tiny water drops can be generated when the bubbles are broken, most of the sea water drops fall under the action of gravity, and part of the sea water drops are distributed on the sea surface in a state of keeping balance with vortex motion diffusion. The concentration of salt fog in the air of island reefs and coastal areas is much higher than that of other areas, and the high concentration of salt fog in the air can cause rapid corrosion of metals and great damage to buildings and metal members.
In the related technology, the salt mist concentration in the air is mainly detected by an ion chromatographic column method. Before detection, a certain volume of ambient air needs to be collected on site, and then the ambient air returns to a laboratory for detecting the concentration of chlorine element in the air by using an ion chromatographic column method. The ion chromatographic column method can only detect the concentration of the chlorine element in the air at a specific moment, and cannot monitor the concentration of the chlorine element in the air and the change condition of the concentration of the chlorine element along with time in real time.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a device for monitoring the concentration of chloride ions in air in real time, which injects ambient air and eluent into a containing cavity, can calculate the real-time concentration of sodium chloride in the air by measuring the potential of the salt spray eluent, and can monitor the change condition of the concentration of sodium chloride in the air along with time.
Meanwhile, the utility model also provides a method for monitoring the concentration of the chloride ions in the air in real time.
According to a first aspect of the present invention, there is provided a real-time monitoring device for the concentration of chloride ions in air, comprising:
a receiving part having a sealed receiving chamber formed therein;
the air guide assembly is connected with the accommodating part and communicated with the accommodating cavity, and the air guide assembly leads ambient air into the accommodating cavity at a first flow rate and then discharges the ambient air;
the water guide assembly is connected with the accommodating part and communicated with the accommodating cavity, and the water guide assembly leads the pure water into the accommodating cavity at a second flow rate and then discharges the pure water;
the ion concentration detection component comprises a chloride ion selection electrode arranged in the accommodating cavity and a processor electrically connected with the chloride ion selection electrode.
According to one embodiment of the utility model, the air guide assembly comprises an air inlet pipe and an air outlet pipe, and the air inlet pipe extends to the bottom of the accommodating cavity.
According to one embodiment of the utility model, the water guide assembly comprises a water inlet pipe and a water outlet pipe, and a gap is formed between the water outlet pipe and the air inlet pipe.
According to one embodiment of the utility model, the containment member is a polytetrafluoroethylene containment cell.
According to one embodiment of the utility model, the liquid container further comprises a buffer assembly, wherein the buffer assembly is arranged in the accommodating cavity, and the buffer assembly enables the liquid in the accommodating cavity to flow smoothly.
According to one embodiment of the utility model, the buffer component is a buffer plate, and a plurality of through holes are uniformly formed in the buffer plate.
According to one embodiment of the utility model, the air inlet pipe and the water outlet pipe are arranged on two sides of the buffer component.
According to a second aspect of the present invention, there is provided a method for monitoring the concentration of chloride ions in air in real time, including the following steps:
continuously introducing ambient air with a first flow rate and second pure water with a second flow rate into the first pure water in the containing cavity to obtain a salt spray eluting solution, and continuously pumping the salt spray eluting solution out of the containing cavity with the second flow rate;
and detecting the real-time potential of the salt spray elution solution in the containing cavity, and calculating the real-time concentration of sodium chloride in the air according to the real-time potential, the first flow and the second flow.
According to an embodiment of the present invention, the detecting a real-time potential of the salt spray elution solution in the containing cavity, and calculating a real-time concentration of sodium chloride in air according to the real-time potential, the first flow rate and the second flow rate specifically includes:
detecting a real-time potential of the salt spray elution solution in the containing cavity;
and calculating the real-time concentration of the sodium chloride in the air according to the real-time potential, the first flow and the second flow, wherein the calculation formula is as follows:
wherein E is(t)Is the real-time potential, VgIs the first flow rate, VlIs the second flow rate, CNaCl(t)The real-time concentration of sodium chloride in the air, and b and k are the intercept and the slope of a linear regression equation between the concentration of chloride ions and the potential.
According to an embodiment of the present invention, the detecting a real-time potential of the salt spray elution solution in the containing cavity, and calculating a real-time concentration of sodium chloride in air according to the real-time potential, the first flow rate and the second flow rate further comprise:
preparing test solutions, and analyzing and determining a linear regression equation between the chloride ion concentration and the potential according to a plurality of groups of test solutions, wherein the linear regression equation is as follows:
wherein, CCL -Is the chloride ion concentration, E is the potential, b is the intercept, and k is the slope.
One or more technical solutions in the present invention have at least one of the following technical effects:
the device for monitoring the concentration of the chloride ions in the air in real time comprises an accommodating part, an air guide component, a water guide component and an ion concentration detection part. The internal structure of holding part has sealed the chamber that holds, puts into the pure water in holding the intracavity during the use. The air guide assembly is communicated with the accommodating cavity and used for introducing ambient air into the accommodating cavity according to the first flow. The water guide assembly is communicated with the containing cavity and used for introducing pure water into the containing cavity according to the second flow. In unit time, the volume of the pure water introduced into the accommodating cavity is determined, the volume of the introduced ambient air is also determined, and the salt mist in the ambient air is dissolved in the pure water to form a salt mist eluting solution with a certain concentration. The real-time potential in the salt spray elution solution is detected through the ion concentration detection part, the concentration of chloride ions in the salt spray elution solution can be calculated according to the real-time potential, and then the concentration of sodium chloride in the air can be calculated according to the flow rate of the ambient air and the flow rate of pure water. When the concentration of the sodium chloride in the air is detected, the real-time ambient air is adopted, so that the concentration of the sodium chloride in the air can be monitored in real time, and the trend of the concentration of the sodium chloride changing along with time can be monitored.
Drawings
FIG. 1 is a schematic structural diagram of a device for monitoring the concentration of chloride ions in air in real time according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for monitoring the concentration of chloride ions in air in real time according to an embodiment of the present invention.
Reference numerals:
1. a housing member; 10. an accommodating chamber; 11. pure water; 2. an air guide assembly; 21. an air inlet pipe; 22. an air outlet pipe; 3. a water guide assembly; 31. a water inlet pipe; 32. a water outlet pipe; 4. an ion concentration detection unit; 41. a chloride ion selective electrode; 42. a processor; 5. a buffer assembly.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly described below with reference to the accompanying drawings of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the utility model, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the utility model.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In embodiments of the utility model, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the related technology, the salt mist concentration in the air is mainly detected by an ion chromatographic column method. Before detection, a certain volume of ambient air needs to be collected on site, and then the ambient air returns to a laboratory for detecting the concentration of chlorine element in the air by using an ion chromatographic column method. The ion chromatographic column method can only detect the concentration of the chlorine element in the air at a specific moment, and cannot monitor the concentration of the chlorine element in the air and the change condition of the concentration of the chlorine element along with time in real time.
Referring to fig. 1, a device for monitoring the concentration of chloride ions in air in real time according to an embodiment of the first aspect of the present invention includes an accommodating unit 1, an air guide unit 2, a water guide unit 3, and an ion concentration detection unit 4.
The holding part 1 is internally provided with a holding cavity 10, pure water 11 is placed in the holding cavity 10, and the pure water 11 is used as the eluent of the ambient air and can dissolve the salt fog in the ambient air.
In order to avoid direct contact of ambient air with the pure water 11 in the housing chamber 10, the housing chamber 10 is a sealed structure. Pure water 11 dress is in sealed chamber 10 that holds, and salt fog among the ambient air can not direct contact pure water 11, avoids producing the interference to pure water 11, has promoted monitoring devices's accuracy nature.
The air guide member 2 is connected to the accommodating member 1 and communicates with the accommodating chamber 10.
When the air guide assembly is used, the air guide assembly 2 can collect the ambient air in real time and lead the ambient air into the accommodating cavity 10 at a first flow rate. The ambient air contacts the pure water 11 in the housing chamber 10, and the pure water 11 dissolves the salt mist in the ambient air, thereby forming a salt mist eluting solution. The eluted ambient air does not contain salt mist any more. The eluted ambient air is then vented to equalize the air pressure within the holding chamber 10.
The water guide member 3 is connected to the accommodating member 1 and communicates with the accommodating chamber 10.
When the water guide assembly is used, the water guide assembly 3 injects a second flow of pure water into the accommodating cavity 10, and the pure water is used for eluting the salt mist in the ambient air. Meanwhile, in order to maintain the balance of the liquid volume in the receiving chamber 10, the water guide assembly 3 is also used for discharging the liquid in the receiving chamber 10 at the second flow rate.
The ion concentration detecting member 4 includes a chloride ion selecting electrode 41 disposed in the housing chamber 10 and a processor 42 electrically connected to the chloride ion selecting electrode 41.
When the device is used, the chloride ion selective electrode 41 directly contacts the salt spray elution solution in the accommodating cavity 10, so that the potential in the salt spray elution solution can be measured, and the processor 42 can calculate the concentration of sodium chloride in the ambient air according to the potential.
The working principle of the ion concentration detection section 4 for calculating the sodium chloride concentration in the ambient air is as follows:
the air guide assembly 2 injects ambient air into the accommodating cavity 10 according to a first flow rate, and the water guide assembly 3 injects pure water into the accommodating cavity 10 according to a second flow rate.
In unit time, the volume of the ambient air introduced into the accommodating cavity 10 is determined, the volume of the pure water injected into the accommodating cavity 10 is also determined, and the pure water elutes the salt mist in the ambient air to form a salt mist eluting solution. And measuring the concentration of chloride ions in the salt spray elution solution, calculating the content of the chloride ions in the salt spray elution solution by combining the volume of the pure water introduced in unit time, and calculating the concentration of sodium chloride in the air according to the content of the chloride ions and the introduced volume of the ambient air in unit time.
The ambient air that lets in and hold chamber 10 is the ambient air of real-time collection, therefore can the sodium chloride concentration in the real-time supervision air, can also monitor the trend of sodium chloride concentration along with time change in the air.
According to the device for monitoring the concentration of the chloride ions in the air in real time, provided by the embodiment of the utility model, the real-time potential of the salt spray elution solution is detected through the chloride ion selection electrode 41, and the real-time concentration of the chloride ions in the salt spray elution solution can be calculated by combining the Nernst equation, so that the real-time concentration of sodium chloride in the air is calculated.
The real-time potential of the salt spray elution solution is detected through the ion concentration detection part 4, the real-time chloride ion concentration of the salt spray elution solution can be efficiently and conveniently obtained, and the efficiency is high.
According to the device for monitoring the concentration of the chloride ions in the air in real time, provided by the embodiment of the utility model, the air guide assembly 2 is used for extracting ambient air and introducing the ambient air into pure water in the accommodating cavity 10 according to a first flow rate so as to elute the ambient air.
According to one embodiment of the present invention, the air guide assembly 2 includes an inlet duct 21 and an outlet duct 22, the inlet duct 21 extending to the bottom of the accommodating chamber 10.
During the use, ambient air lets in from intake pipe 21 and holds the chamber 10 in, and the process that ambient air floated from pure water 11 interior and tumbles salt fog is dissolved in the pure water. Intake pipe 21 extends to the bottom that holds chamber 10, has increased the route that the ambient air come-up was tumbled, has increased the dissolution rate of salt fog, has promoted chloride ion concentration measurement's accuracy.
According to the device for monitoring the concentration of the chloride ions in the air in real time, provided by the embodiment of the utility model, the water guide assembly 3 is used for injecting pure water into the accommodating cavity 10, and the pure water is used for dissolving salt mist in the ambient air.
According to one embodiment of the present invention, the water guide assembly 3 comprises a water inlet pipe 31 and a water outlet pipe 32, and a space is arranged between the water inlet pipe 31 and the water outlet pipe 32.
When the salt spray eluting device is used, pure water is injected into the accommodating cavity 10 through the water inlet pipe 31, and salt spray in ambient air is dissolved by the pure water to form salt spray eluting solution.
It is understood that a certain time is required for the chloride ions to diffuse in the solution. In order to avoid the uneven diffusion of the chloride ions and the occurrence of the situation of too high local chloride ion concentration, a gap is arranged between the water inlet pipe 31 and the water outlet pipe 32.
During the use, the pure water that flows out in the inlet tube 31 reaches outlet pipe 32 and needs to pass through certain time, and chloride ion can fully diffuse in this time, makes the chloride ion distribution in the salt spray elution solution more even, more representative, has promoted real-time supervision device's accuracy.
In another embodiment, the volume of the pure water filled in the containing cavity 10 is not more than two thirds of the volume of the containing cavity 10, which is beneficial to the diffusion of the chlorine ions in the containing cavity 10.
According to the device for monitoring the concentration of the chloride ions in the air in real time, provided by the embodiment of the utility model, salt mist is dissolved in pure water to form a salt mist elution solution, and the salt mist elution solution contains chloride ions, so that the accommodating part 1 or the accommodating cavity 10 can be corroded.
According to one embodiment of the present invention, the accommodating member 1 is made of a corrosion-resistant material, and may be a teflon accommodating cell or the like.
During the use, polytetrafluoroethylene holds the pond and has good corrosion resisting property, when storing or contact salt solution, can not take place to dissolve or destroy, consequently can not influence the chloride ion concentration in the salt fog elution solution, has promoted real-time supervision device's accuracy.
According to the device for monitoring the concentration of the chloride ions in the air in real time provided by the embodiment of the utility model, the water guide assembly 3 comprises the water inlet pipe 31 and the water outlet pipe 32, the water inlet pipe 31 injects pure water into the accommodating cavity 10 at a second flow rate, and the chlorine ions are unevenly diffused when the flow rate of the pure water is too high, so that the measurement of the concentration of the chloride ions is interfered.
According to an embodiment of the present invention, a buffer assembly 5 is further disposed in the accommodating chamber 10, and the buffer assembly 5 is used for smoothing the flow of the liquid in the accommodating chamber 10.
When the device is used, the pure water flowing out of the water inlet pipe 31 dissolves salt mist in the ambient air, and chloride ions are diffused to form a salt mist elution solution. Salt fog eluting solution receives buffer assembly 5's interference when flowing, and buffer assembly 5 has reduced salt fog eluting solution's velocity of flow, is favorable to the chloride ion diffusion even, has promoted monitoring devices's accuracy.
In one embodiment, the buffer member 5 is a corrosion resistant mesh or batting structure that increases the resistance to the flow of the salt spray elution solution.
In another embodiment, the buffer component 5 is a buffer plate, the buffer plate is vertically inserted into the accommodating cavity 10, a plurality of through holes are arranged on the buffer plate, and the salt spray elution solution flows through the buffer plate along the through holes, so that the speed is reduced, and the interference on the chloride ion selection electrode 41 is reduced.
In the case where the buffering assembly 5 is provided in the accommodating chamber 10, the inlet pipe 31 and the outlet pipe 32 are provided at both sides of the buffering assembly 5.
During the use, the salt spray elution solution that outlet pipe 32 extracted need pass through buffering subassembly 5, has increased buffering subassembly 5's deceleration effect, has promoted the homogeneity of chloride ion, has reduced the interference to chloride ion selective electrode 41.
According to a second aspect of the present invention, a method for monitoring the concentration of chloride ions in air in real time is provided, please refer to fig. 2, which includes the following steps:
and S1, continuously introducing ambient air with a first flow rate and second pure water with a second flow rate into the first pure water in the containing cavity to obtain a salt spray eluting solution, and continuously pumping the salt spray eluting solution out of the containing cavity with the second flow rate.
It can be understood that a certain volume of first pure water is put into the containing cavity and used for dissolving salt mist in the ambient air, and the first pure water can elute the salt mist from the ambient air to form a salt mist eluting solution.
The containing cavity is filled with ambient air at a first flow rate, and second pure water at a second flow rate. And in unit time, the volume of the ambient air introduced into the accommodating cavity is determined, and the volume of the second pure water introduced into the accommodating cavity is also determined.
And (3) eluting the salt mist in the ambient air into second pure water to form a salt mist eluting solution, measuring the concentration of chloride ions or sodium chloride in the salt mist eluting solution, and calculating the amount of sodium chloride brought by the ambient air in unit time. The volume of ambient air introduced into the chamber per unit time is known, and the concentration of sodium chloride in the air can be calculated from the concentration of chloride ions in the salt spray elution solution.
According to the method for monitoring the concentration of the chloride ions in the air in real time, provided by the embodiment of the utility model, the salt spray is eluted by pure water, and the pure water does not contain impurities, so that the interference on the concentration of the chloride ions can be avoided.
In one embodiment, deionized water or distilled water is used as the first pure water and the second pure water.
In order to increase the dissolution rate of the salt spray in the first pure water and increase the elution effect on the ambient air, the speed is slow when the ambient air is introduced into the first pure water, and the time and the space for the ambient air to contact the first pure water and the second pure water are increased.
In an embodiment, when the ambient air is introduced into the first pure water, the air inlet pipe is arranged at the bottom of the accommodating cavity, or the air inlet pipe comprises a plurality of thin pipes and is respectively introduced with air into the accommodating cavity.
The salt mist is dissolved in the first pure water to form a salt mist elution solution, and a certain time is required for the chlorine ions to diffuse in the solution.
In one embodiment, the volume of the first pure water cannot be too large and is not more than two thirds of the volume of the accommodating cavity, so that the uniform diffusion of the chloride ions can be ensured, and the uniformity of the distribution of the chloride ions in the salt spray elution solution can be improved.
In an embodiment, hold the intracavity and be provided with buffering subassembly, buffering subassembly can slow down the velocity of flow of second pure water in first pure water, is favorable to guaranteeing that the chloride ion diffusion is even, also can avoid the interference to chloride ion concentration detection.
In one embodiment, the accommodating cavity is of a sealed structure, so that external ambient air can be prevented from directly contacting the first pure water or the second pure water, and interference factors are reduced.
And S2, detecting the real-time potential of the salt spray elution solution in the containing cavity, and calculating the real-time concentration of sodium chloride in the air according to the real-time potential, the first flow and the second flow.
According to the Nernst equation, the ion concentration in the solution has a relationship with the potential, and the ion concentration can be estimated by detecting the potential of the ions in the solution.
According to the method for monitoring the concentration of the chloride ions in the air in real time, provided by the embodiment of the utility model, the potential in the salt spray elution solution is detected by adopting the chloride ion selective electrode, and then the concentration of the chloride ions in the salt spray elution solution is calculated.
The volume of the second pure water is constant in unit time, the chloride ion concentration is obtained by potential real-time detection, and the volume of the ambient air is also constant, so that the concentration of sodium chloride in the air can be calculated.
The working principle for calculating the concentration of sodium chloride in air is as follows:
the accommodating cavity is internally provided with a placing volume V0The volume of the deionized water is not more than two thirds of the volume of the containing cavity.
And continuously introducing ambient air into the deionized water in the accommodating cavity, wherein the flow rate of the ambient air is Vg. The salt spray is eluted from the ambient air to form a salt spray elution solution.
In the introduction of ambient airAt the same time, deionized water is introduced into the containing cavity, and the flow rate of the deionized water is VlAnd discharging the salt spray elution solution in the containing cavity at a discharge flow rate Vl。
The potential E of the salt spray elution solution in the containing cavity is detected by adopting a chloride ion selective electrode, and the concentration of sodium chloride in the air can be calculated according to the potential E.
Chloride ion concentration C according to Nernst's equationCl -And the potential E satisfies the following relationship:
by measuring different chloride ion concentrations CCl -And a corresponding potential E, the slope k and intercept b are determined using linear regression analysis.
In the embodiment of the utility model, when the slope k and the intercept b of the linear regression equation are analyzed and determined, the existing data can be analyzed and processed, and a test solution can be prepared for analysis and determination before the real-time potential of the salt spray elution solution in the accommodating cavity is detected.
According to an embodiment of the present invention, detecting a real-time potential of the salt spray elution solution in the containment chamber, and calculating a real-time concentration of sodium chloride in air according to the real-time potential, the first flow rate, and the second flow rate, previously further comprises:
s10, preparing test solutions, and determining a linear regression equation between the chloride ion concentration and the potential according to analysis of multiple groups of test solutions, wherein the linear regression equation is as follows:
wherein, CCL -Is the chloride ion concentration, E is the potential, b is the intercept, and k is the slope.
The method for monitoring the concentration of chloride ions in air in real time provided by the embodiment of the utility model is characterized in that the concentration C of the chloride ions in a salt spray elution solutionCL -The concentration of sodium chloride in the air can be calculated by the following relationship:
when the chloride ion concentration in the holding chamber reaches equilibrium, the above formula can be converted into:
substituting this equation into a linear regression equation, the following equation can be obtained:
from the above, the concentration of sodium chloride in the air can be calculated from the potential of the salt spray elution solution, the first flow rate, and the second flow rate.
According to an embodiment of the present invention, the detecting a real-time potential of the salt spray elution solution in the containing cavity, and calculating a real-time concentration of sodium chloride in air according to the real-time potential, the first flow rate and the second flow rate specifically includes:
s21, detecting the real-time potential of the salt spray elution solution in the containing cavity.
S22, calculating the real-time concentration of the sodium chloride in the air according to the real-time potential, the first flow and the second flow, wherein the calculation formula is as follows:
wherein E is(t)Is the real-time potential, VgIs the first flow rate, VlIs the second flow rate, CNaCl(t)Is the real-time concentration of sodium chloride in the air, and b and k are sections of a linear regression equation between the concentration of chloride ions and the potentialDistance and slope.
It can be understood that the volume of the ambient air injected into the accommodating cavity per unit time is constant, and the volume of the second pure water introduced into the accommodating cavity is also constant. By detecting the real-time potential of the salt spray elution solution, the real-time concentration of chloride ions in the salt spray elution solution can be indirectly measured, and then the real-time concentration of sodium chloride in the ambient air can be calculated.
According to the method for monitoring the concentration of the chloride ions in the air in real time, the monitoring device is arranged in the outdoor environment, the ambient air can be extracted at any time, the real-time concentration of the sodium chloride in the ambient air can be calculated, the ambient air does not need to be brought back to a laboratory, and the method is convenient and flexible to use. The concentration information of the chloride ions in the air can be obtained in time, and the trend of the concentration of the chloride ions in the air changing along with the time can be monitored.
In summary, the device and the method for monitoring the concentration of chloride ions in air in real time provided by the embodiments of the present invention include an accommodating component, an air guide component, a water guide component, and an ion concentration detecting component. The internal structure of holding part has sealed the chamber that holds, puts into the pure water in holding the intracavity during the use. The air guide assembly is communicated with the accommodating cavity and used for introducing ambient air into the accommodating cavity according to the first flow. The water guide assembly is communicated with the containing cavity and used for introducing pure water into the containing cavity according to the second flow. In unit time, the volume of the pure water introduced into the accommodating cavity is determined, the volume of the introduced ambient air is also determined, and the salt mist in the ambient air is dissolved in the pure water to form a salt mist eluting solution with a certain concentration. The real-time potential in the salt spray elution solution is detected through the ion concentration detection part, the concentration of chloride ions in the salt spray elution solution can be calculated according to the real-time potential, and then the concentration of sodium chloride in the air can be calculated according to the flow rate of the ambient air and the flow rate of pure water. When the concentration of the sodium chloride in the air is detected, the real-time ambient air is adopted, so that the concentration of the sodium chloride in the air can be monitored in real time, and the trend of the concentration of the sodium chloride changing along with time can be monitored.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a device for monitoring chloride ion concentration in air in real time, which is characterized in that includes:
a receiving part having a sealed receiving chamber formed therein;
the air guide assembly is connected with the accommodating part and communicated with the accommodating cavity, and the air guide assembly leads ambient air into the accommodating cavity at a first flow rate and then discharges the ambient air;
the water guide assembly is connected with the accommodating part and communicated with the accommodating cavity, and the water guide assembly leads the pure water into the accommodating cavity at a second flow rate and then discharges the pure water;
the ion concentration detection component comprises a chloride ion selection electrode arranged in the accommodating cavity and a processor electrically connected with the chloride ion selection electrode.
2. The device for monitoring the concentration of chloride ions in air in real time as claimed in claim 1, wherein the air guide assembly comprises an air inlet pipe and an air outlet pipe, and the air inlet pipe extends to the bottom of the accommodating cavity.
3. The device for monitoring the concentration of the chloride ions in the air in real time according to claim 2, wherein the water guide assembly comprises a water inlet pipe and a water outlet pipe, and a gap is formed between the water outlet pipe and the air inlet pipe.
4. The device for monitoring the concentration of chloride ions in air in real time according to claim 1, wherein the accommodating component is a polytetrafluoroethylene accommodating pool.
5. The device for monitoring the concentration of chloride ions in air in real time as claimed in claim 3, further comprising a buffer component, wherein the buffer component is arranged in the accommodating cavity, and the buffer component enables liquid in the accommodating cavity to flow smoothly.
6. The device for monitoring the concentration of chloride ions in air in real time as claimed in claim 5, wherein the buffer component is a buffer plate, and a plurality of through holes are uniformly arranged on the buffer plate.
7. The device for monitoring the concentration of chloride ions in air in real time as claimed in claim 5, wherein the air inlet pipe and the water outlet pipe are arranged at two sides of the buffer component.
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| CN202121731112.6U CN215768378U (en) | 2021-07-28 | 2021-07-28 | Device for monitoring concentration of chloride ions in air in real time |
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| CN202121731112.6U CN215768378U (en) | 2021-07-28 | 2021-07-28 | Device for monitoring concentration of chloride ions in air in real time |
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