CN113125511A - Bubble parameter and boric acid concentration synchronous measurement dual-purpose probe system based on conductance method - Google Patents
Bubble parameter and boric acid concentration synchronous measurement dual-purpose probe system based on conductance method Download PDFInfo
- Publication number
- CN113125511A CN113125511A CN202110315043.9A CN202110315043A CN113125511A CN 113125511 A CN113125511 A CN 113125511A CN 202110315043 A CN202110315043 A CN 202110315043A CN 113125511 A CN113125511 A CN 113125511A
- Authority
- CN
- China
- Prior art keywords
- probe
- conductance
- boric acid
- bubble
- acid concentration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
- G01N27/07—Construction of measuring vessels; Electrodes therefor
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The application relates to a bubble parameter and boric acid concentration synchronous measurement double-purpose probe system based on a conductance method, which comprises the following steps: the device comprises a conductive probe, a displacement device, an excitation power module and a signal acquisition device; the conductive probe comprises two electrodes which are respectively used as an excitation electrode and a receiving electrode; two electrodes of the conductance probe are contacted with a solution to be detected; the displacement device can drive the two electrodes of the conductance probe to move in the solution to be detected; the conductance probe is electrically connected with the excitation power supply module, and alternating-current square wave voltage generated by the excitation power supply module is applied to the conductance probe; the signal acquisition device is used for acquiring the output potential of the conductance probe. The scheme of this application is based on the conductance method, adopts a double-end probe just can synchronous measurement bubble parameter and boric acid concentration to obtain the influence characteristic of nearly wall boiling region bubble action to boron element migration, solved prior art and only can be based on the problem of conductance method measurement bubble parameter.
Description
Technical Field
The application relates to the technical field of prediction of reactor core power drift, in particular to a bubble parameter and boric acid concentration synchronous measurement dual-purpose probe system based on a conductance method.
Background
When the pressurized water reactor is operated, certain loop pipelines and equipment, such as steam generator heat transfer tubes with the largest heat transfer area, are continuously subjected to scouring and abrasion of high-temperature and high-pressure coolant, and accelerated corrosion of pipeline fluid, so that a large amount of oxidation corrosion products are formed. The corrosion products are saturated and separated out under the drive of supercooling boiling and are deposited on the surface of a fuel cladding on the upper part of a reactor core to form an oxidation corrosion product deposition layer with a loose structure and nonuniform axial thickness distribution. Meanwhile, boron elements in the coolant are also saturated and precipitated under the driving of supercooling boiling and are adsorbed by the oxide corrosion product deposition layer, so that the boron elements are in a non-uniform distribution state on the axial surface of the fuel rod. Due to the fact that10B has obvious neutron absorption capacity, and the adsorption of boron by the oxide corrosion product deposition layer can cause the distortion of power distribution to the bottom of the reactor, thereby causing the power drift phenomenon of the reactor core. The local power change caused by the reactor core power drift phenomenon can reach more than 15 percent, and the reactor core power drift phenomenon can not only cause the power reduction of a nuclear reactor, but also cause the emergency shutdown, and reduce the neutron economy of the nuclear reactor; but also can affect the residual reactivity and shutdown margin of the core and even cause cladding failure, thus threatening the integrity of the safety barrier of the nuclear reactor. Therefore, the accurate prediction of the power drift of the reactor core has important significance on the economy of nuclear power and the safety of the reactor.
The core power drift phenomenon relates to a complex process such as saturation precipitation of boron elements in the supercooling boiling of a coolant, and two-phase boundary layer characteristics such as bubble size, speed and the like of the near wall of a fuel rod determine the migration of the boron elements in the near-wall two-phase region and the distribution of the boron elements on a deposition layer of oxidation corrosion products with porous morphology. Therefore, obtaining the two-phase boundary layer characteristics of the near wall of the fuel rod and the migration characteristics of the boron element in the two-phase region of the near wall is the basis for accurately predicting the core power drift.
At present, methods for measuring characteristics of a two-phase boundary layer mainly include a high-speed imaging method, a ray method, an optical method and a conductivity method. The optical and ray method utilizes different characteristics of light rays emitted from different phases and obtains bubble parameters by performing spectral analysis on refracted light. The accuracy of measuring the bubble degree by an optical and ray method is high, but the operation is more complex and the method is difficult to be applied to a complex structure. The high-speed photography method is used for shooting and recording gas-liquid two phases in real time by utilizing high-speed photography, and then analyzing the obtained image, so as to obtain bubble parameters, such as bubble size, bubble speed and the like. The high-speed photography method can obtain a fine structure of a gas-liquid interface at a high speed, but is severely limited by a photographing region. The conductance method is a high-precision and quick-response real-time contact type measuring method for two-phase parameters, and can dynamically measure the bubble parameters of local areas.
The method for measuring the boron element mainly comprises an instantaneous gamma activation analysis method, a neutron depth analysis method, a curcumin method, a mannitol titration method, an azomethine-H acid ratio color method and an inductively coupled plasma emission spectrometer method. Wherein the prompt gamma activation analysis method irradiates the sample with a neutron beam, and10the nucleus of B element generates nuclear reaction to release instantaneous gamma ray with 477keV energy, and the characteristic gamma ray intensity is measured to determine10The content of B; the neutron depth analysis method is a non-destructive boron concentration analysis technique, and the sample is irradiated by neutron beam in vacuum target chamber, and the neutron and its neutron10B, carrying out (n, alpha) reaction, capturing ions penetrating through the sample by an ion energy detector in the vacuum target chamber, and further carrying out inversion calculation to obtain the boron content of the target nuclide along the depth direction. The two boron measurement methods require neutron sources, the system is expensive and complex, and a solid sample is required for analyzing boron elements. In the other four methods, the curcumin method and the mannitol titration method have narrow boron concentration detection range and need sampling measurement; the azomethine-H acid colorimetric method is suitable for wide boron concentration range and high accuracy, but has complex operationThe sample needs to be preserved in dark in the preparation process; the method for measuring the boron concentration of the solution by using the inductively coupled plasma emission spectrometer is simple and quick to operate, is suitable for a large boron concentration range, has high accuracy, is expensive in equipment, and needs to be sampled and measured.
In conclusion, the two-phase boundary layer characteristic of the near wall of the fuel rod and the migration characteristic of boron in the two-phase region of the near wall are the basis for accurately predicting the power drift of the reactor core, and the existing technology is only based on the measurement of the bubble parameter by the conductance method; to accurately predict the core power drift, the measurement of the dynamic migration characteristic of boron in a near-wall two-phase region is lacked.
Disclosure of Invention
In order to overcome the problems in the related art at least to a certain extent, the application provides a dual-purpose probe system for synchronously measuring bubble parameters and boric acid concentration based on a conductance method.
According to a first aspect of embodiments of the present application, there is provided a dual-purpose probe system for synchronously measuring a bubble parameter and a boric acid concentration based on a conductance method, including: the device comprises a conductive probe, a displacement device, an excitation power module and a signal acquisition device;
the conductive probe comprises two electrodes which are respectively used as an excitation electrode and a receiving electrode;
two electrodes of the conductance probe are contacted with a solution to be detected; the displacement device can drive the two electrodes of the conductance probe to move in the solution to be detected;
the conductance probe is electrically connected with the excitation power supply module, and alternating-current square wave voltage generated by the excitation power supply module is applied to the conductance probe;
the signal acquisition device is used for acquiring the output potential of the conductance probe.
Furthermore, the system also comprises a signal processing circuit, wherein the signal processing circuit comprises a current-voltage converter, a reference voltage unit, a signal sampling unit, an excitation power supply module and a digital switch which are electrically connected in sequence.
Further, the current-to-voltage converter includes an amplifier U4 for converting the current flowing through the sensor to a voltage.
Further, the reference voltage unit includes an amplifier U6 for providing a reference voltage for instrumentation amplifier U5.
Further, the signal sampling unit includes sample-and-hold buffers U9 and U11, and an inverting attenuator U10 for limiting the signal amplitude within a detectable range.
Further, the excitation power supply module includes amplifiers U2A and U2B for outputting positive and negative excitation voltages.
Further, the digital switch is realized by a PWM wave of a microprocessor for controlling the exchange of positive and negative excitation voltages of the excitation power supply module.
Further, the signal processing circuit further comprises a linear voltage regulator U12 for supplying power to the microprocessor.
According to a second aspect of the embodiments of the present application, there is provided a method for synchronously measuring a bubble parameter and a boric acid concentration based on a conductance method, the method applying the probe system as described in any one of the above embodiments, the method comprising the steps of:
acquiring output potentials of two electrodes of a probe system;
analyzing relevant parameters of the bubbles according to the peak value convex part of the output potential;
the boric acid concentration is analyzed based on the low potential portion of the output potential.
Further, the analyzing the relevant parameters of the bubbles according to the peak convex part of the output potential comprises:
analyzing bubble speed and size parameters according to the instantaneous difference between the output potentials of the two electrodes;
the analyzing the boric acid concentration according to the low potential part of the output potential comprises:
and analyzing the boric acid concentration according to the output conductivity inversion boron concentration calibration curve.
The technical scheme provided by the embodiment of the application has the following beneficial effects:
the scheme of the application is based on the conductance method, and the bubble parameters and the boric acid concentration can be synchronously measured by adopting a double-head probe so as to obtain the characteristic of influence of the bubble behavior of a near-wall boiling region on the migration of boron elements, thereby solving the problem that the bubble parameters can only be measured based on the conductance method in the prior art; the local radial position of the double-head probe in the flow channel can be controlled through the displacement device, on one hand, the size and the speed distribution of the bubbles in the two-phase boundary layer are obtained, on the other hand, the radial distribution of the concentration of the boric acid in the two-phase region near the wall is obtained, and the influence of the behavior of the bubbles near the wall on the migration of the boron element is analyzed.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic structural diagram illustrating a dual-purpose probe system for synchronously measuring a bubble parameter and a boric acid concentration based on a conductance method according to an exemplary embodiment.
Fig. 2(a) is a circuit diagram of an excitation power supply module in the signal processing circuit of the probe system of the present invention.
Fig. 2(b) is a circuit diagram of a signal processing module in the signal processing circuit of the probe system of the present invention.
FIG. 3(a) is a graph of conductivity of boron-containing liquid at a solution temperature of 70 ℃ as a function of solution temperature and boric acid concentration.
FIG. 3(b) is a graph of conductivity of boron-containing liquid at a solution temperature of 80 ℃ as a function of solution temperature and boric acid concentration.
FIG. 3(c) is a graph of conductivity of boron-containing liquid as a function of solution temperature and boric acid concentration at a solution temperature of 100 ℃.
FIG. 4 is a graph of the synchronized output of bubble parameters and boric acid concentration as actually measured in one embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of systems and methods consistent with certain aspects of the present application, as detailed in the appended claims.
At present, a plurality of technical schemes are provided for measuring bubble parameters through a conductance probe, but the existing technology is only based on a conductance method to measure the bubble parameters and does not relate to measurement of boric acid concentration. Considering that the conductance method is a high-precision and fast-response two-phase parameter transient measurement method, and can dynamically obtain the bubble parameters of a local area. Therefore, when the conductance method is applied to the transient measurement of the boron concentration, the characteristics of a two-phase boundary layer including the size and the speed parameters of the bubble can be obtained simultaneously, so that the invention designs a dual-purpose probe system for synchronously measuring the bubble parameters and the boric acid concentration based on the conductance method.
Fig. 1 is a schematic structural diagram illustrating a dual-purpose probe system for synchronously measuring a bubble parameter and a boric acid concentration based on a conductance method according to an exemplary embodiment. The probe system includes: the device comprises a conductive probe, a displacement device, an excitation power module and a signal acquisition device.
As shown in fig. 1, the conductance probe includes two electrodes, which are respectively used as an excitation electrode and a receiving electrode; the two electrodes of the conductivity probe are in contact with the solution (boron-containing liquid) to be tested. The displacement device can be a micro-motion platform and can drive the two electrodes of the conductance probe to move in the solution to be detected. Referring to fig. 1, two electrodes are provided at the same end of the conductivity probe, and this end is inserted into a tube filled with the solution to be measured; the electric conduction probe is arranged along the radial direction of the pipeline, and the other end of the electric conduction probe penetrates through the heating wall surface of the pipeline and extends out of the pipeline. The micromotion platform can be fixedly arranged on the outer side face of the heating wall face, and the other end of the conductive probe is connected with the micromotion platform, so that the micromotion platform can drive the conductive probe to move along the radial direction of the pipeline, and the two electrodes can measure bubble parameters and boric acid concentrations at different positions.
The conductance probe is electrically connected with the excitation power supply module, and alternating-current square wave voltage generated by the excitation power supply module is applied to the conductance probe. The signal acquisition device may be a computer for acquiring the output potential of the conductance probe.
The scheme of the application is based on the conductance method, and the bubble parameters and the boric acid concentration can be synchronously measured by adopting a double-head probe so as to obtain the characteristic of influence of the bubble behavior of a near-wall boiling region on the migration of boron elements, thereby solving the problem that the bubble parameters can only be measured based on the conductance method in the prior art; the local radial position of the double-head probe in the flow channel can be controlled through the displacement device, on one hand, the size and the speed distribution of the bubbles in the two-phase boundary layer are obtained, on the other hand, the radial distribution of the concentration of the boric acid in the two-phase region near the wall is obtained, and the influence of the behavior of the bubbles near the wall on the migration of the boron element is analyzed.
In order to further detail the technical scheme of the present application, the working principle of the probe system of the present application for measuring the bubble parameter and the boric acid concentration is specifically explained below.
Referring first to fig. 1, the two poles (the excitation pole and the reception pole), the conductive solution and the circuit board of the double-ended probe form a closed loop under the action of an external excitation power source. When the double-ended probe contacts the solution, the solution is conductive and outputs a low potential; when the double-head probe contacts the vapor bubble, the vapor bubble does not conduct electricity and outputs high potential. Therefore, the bubble parameters or the boron concentration of the solution can be judged by the probe according to the output potential.
Secondly, the solution contains boric acid, and the boric acid has conductivity by ionization. The conductivity of the boric acid solution has a good linear relation with the boric acid concentration, and the boric acid concentration can be quantitatively determined through the magnitude of the output electric signal.
And finally, controlling the local radial position of the double-head probe in the flow channel through the micro-motion platform, on one hand, obtaining the size and the speed distribution of bubbles in a two-phase boundary layer (namely a near-wall radial two-phase region), on the other hand, obtaining the radial distribution of boric acid concentration in the near-wall two-phase region, and analyzing the influence of the near-wall bubble behavior on boron element migration.
The principle of the conductance method is to apply a constant voltage to the probe and measure the change in current between the double-ended electrodes to obtain the vapor/liquid conductivity therebetween. In order to reduce the additional polarization resistance introduced by the liquid ionization effect, the probe of the scheme of the application is driven by an alternating current square wave, the generation and the adsorption of ions on the surface of the probe are inhibited by alternating voltage, and a signal processing circuit for synchronously measuring the whole bubble parameters and the boric acid concentration is shown in figures 2(a) to (b).
In some embodiments, the system further comprises a signal processing circuit comprising a current-to-voltage converter, a reference voltage unit, a signal sampling unit, an excitation power supply module, and a digital switch electrically connected in sequence. The signal processing circuit is disposed on a circuit board as shown in fig. 1, and the signal processing circuit may include an excitation power supply module and a signal processing module.
As shown in fig. 2(a), in some embodiments, the excitation power module includes amplifiers U2A and U2B for outputting positive and negative excitation voltages to generate an ac square wave to drive the probe and suppress ion generation and adsorption on the surface of the probe.
As shown in fig. 2(b), in some embodiments, the signal processing module comprises: the circuit comprises a current-voltage converter, a reference voltage unit, a signal sampling unit and a digital switch. The current-to-voltage converter includes an amplifier U4 for converting the current flowing through the sensor to a voltage. The reference voltage unit includes an amplifier U6 for providing a reference voltage of 1.65V to instrumentation amplifier U5. The signal sampling unit comprises sample hold buffers U9 and U11, and an inverse attenuator U10, and is used for limiting the signal amplitude within a detectable range.
The digital switch is realized by PWM wave of a microprocessor and is used for controlling the exchange of positive and negative excitation voltage of the excitation power supply module. Correspondingly, the signal processing circuit also comprises a linear voltage regulator U12 for providing a 3.3V power supply for the microprocessor.
The probe system of the application adopts a double-head probe to measure the bubble parameters and the boric acid concentration synchronously so as to obtain the influence characteristics of the bubble behavior of the near-wall boiling region on the migration of the boron element, solve the problem that the prior art can only measure the bubble parameters based on the conductance method, and solve the problems of complex operation and high cost of the prior technical scheme for measuring the boric acid concentration.
The present application further provides the following embodiments:
a method for synchronously measuring bubble parameters and boric acid concentration based on a conductance method is applied to the probe system in any one embodiment, and specifically comprises the following steps:
acquiring output potentials of two electrodes of a probe system;
analyzing relevant parameters of the bubbles according to the peak value convex part of the output potential;
the boric acid concentration is analyzed based on the low potential portion of the output potential.
In some embodiments, the analyzing the relevant parameter of the bubble according to the peak convex part of the output potential specifically includes:
the bubble velocity and size parameters were analyzed based on the instantaneous difference between the output potentials of the two electrodes.
The analyzing the boric acid concentration according to the low potential part of the output potential specifically comprises:
and analyzing the boric acid concentration according to the output conductivity inversion boron concentration calibration curve.
FIG. 3 shows the relationship between the concentration of boric acid and the electrical conductivity at different temperatures, which are both very linear. Under atmospheric conditions, the solution temperature tends to the saturation temperature (about 100 ℃) when near-wall boiling generates bubbles. Fig. 3(c) shows a linear relationship between the conductivity and the boric acid concentration, which is a calibration curve of the inversion of the output conductivity to the boron concentration in the conductivity method.
FIG. 4 shows the result of synchronously obtaining bubble parameters and boric acid concentration by the double-head conductance probe, the raised part of the output potential with the peak value represents the contact of the probe and the bubble, and the instantaneous difference between the output potentials of the long probe and the short probe can be used for analyzing the parameters of the bubble speed, the bubble size and the like. The output of the low potential in the figure indicates that the probe is in contact with the solution with boric acid, and the magnitude of the low potential represents the magnitude of the concentration of boric acid.
The scheme of the application is based on the bubble parameters and the boric acid concentration of the electric conduction probe synchronous measurement, so that the influence characteristics of the bubble behavior of the near-wall boiling region on the boron element migration are obtained. The scheme of the application solves the problem that in the prior art, the power drift of the reactor core cannot be accurately predicted only by measuring the bubble parameters based on a conductance method.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means 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 the application. In this specification, the schematic representations of the terms used above do not necessarily 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.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. The utility model provides a bubble parameter and boric acid concentration synchronous measurement double-purpose probe system based on electric conductance method which characterized in that includes: the device comprises a conductive probe, a displacement device, an excitation power module and a signal acquisition device;
the conductive probe comprises two electrodes which are respectively used as an excitation electrode and a receiving electrode;
two electrodes of the conductance probe are contacted with a solution to be detected; the displacement device can drive the two electrodes of the conductance probe to move in the solution to be detected;
the conductance probe is electrically connected with the excitation power supply module, and alternating-current square wave voltage generated by the excitation power supply module is applied to the conductance probe;
the signal acquisition device is used for acquiring the output potential of the conductance probe.
2. The probe system of claim 1, wherein: the system also comprises a signal processing circuit, wherein the signal processing circuit comprises a current-voltage converter, a reference voltage unit, a signal sampling unit, an excitation power module and a digital switch which are sequentially and electrically connected.
3. The probe system of claim 2, wherein: the current-to-voltage converter includes an amplifier U4 for converting the current flowing through the sensor to a voltage.
4. The probe system of claim 2, wherein: the reference voltage unit includes an amplifier U6 for providing a reference voltage for instrumentation amplifier U5.
5. The probe system of claim 2, wherein: the signal sampling unit comprises sample hold buffers U9 and U11, and an inverse attenuator U10, and is used for limiting the signal amplitude within a detectable range.
6. The probe system of any one of claims 2-5, wherein: the excitation power supply module includes amplifiers U2A and U2B for outputting positive and negative excitation voltages.
7. The probe system of claim 6, wherein the digital switch is implemented by a PWM wave of a microprocessor for controlling the exchange of positive and negative excitation voltages of the excitation power supply module.
8. The probe system of claim 7, wherein the signal processing circuit further comprises a linear regulator U12 for providing power to the microprocessor.
9. A method for simultaneous measurement of bubble parameters and boric acid concentration based on conductance method, wherein the method uses the probe system according to any one of claims 1 to 8, the method comprising:
acquiring output potentials of two electrodes of a probe system;
analyzing relevant parameters of the bubbles according to the peak value convex part of the output potential;
the boric acid concentration is analyzed based on the low potential portion of the output potential.
10. The method of claim 9, wherein analyzing the bubble related parameter based on the peak convex portion of the output potential comprises:
analyzing bubble speed and size parameters according to the instantaneous difference between the output potentials of the two electrodes;
the analyzing the boric acid concentration according to the low potential part of the output potential comprises:
and analyzing the boric acid concentration according to the output conductivity inversion boron concentration calibration curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315043.9A CN113125511B (en) | 2021-03-24 | 2021-03-24 | Bubble parameter and boric acid concentration synchronous measurement dual-purpose probe system based on electric conduction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110315043.9A CN113125511B (en) | 2021-03-24 | 2021-03-24 | Bubble parameter and boric acid concentration synchronous measurement dual-purpose probe system based on electric conduction method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113125511A true CN113125511A (en) | 2021-07-16 |
| CN113125511B CN113125511B (en) | 2022-08-23 |
Family
ID=76774171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110315043.9A Active CN113125511B (en) | 2021-03-24 | 2021-03-24 | Bubble parameter and boric acid concentration synchronous measurement dual-purpose probe system based on electric conduction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113125511B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115598183A (en) * | 2022-11-11 | 2023-01-13 | 利诚检测认证集团股份有限公司（Cn） | Liquid food conductivity detection method and device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58187840A (en) * | 1982-04-28 | 1983-11-02 | Canon Inc | System for detecting bubble in fluid flowline |
| CN1443138A (en) * | 2000-08-07 | 2003-09-17 | 西弗斯仪器公司 | Low-level boron detection and measurement |
| CN101413911A (en) * | 2008-11-27 | 2009-04-22 | 上海交通大学 | Method and device for measuring two-phase flow parameter based on double-end capacitance probe |
| CN102072925A (en) * | 2010-08-16 | 2011-05-25 | 江苏大学 | Stroma moisture and conductivity in situ detector and method for determining salinity |
| CN202024724U (en) * | 2011-01-21 | 2011-11-02 | 华南理工大学 | Bubble detection system for conducting probe |
| CN103207211A (en) * | 2013-03-06 | 2013-07-17 | 中国科学院合肥物质科学研究院 | Device and method for measuring liquid metal two-phase flow void fraction |
| WO2014016107A1 (en) * | 2012-07-23 | 2014-01-30 | Forschungszentrum Jülich GmbH | Bubble detector |
| CN103791236A (en) * | 2012-10-30 | 2014-05-14 | 精工爱普生株式会社 | Liquid transport apparatus and bubble determination method |
| CN105973940A (en) * | 2016-04-26 | 2016-09-28 | 重庆大学 | Four-conducting-probe measurement signal-processing system for gas-liquid two-phase flow detection |
| CN106546634A (en) * | 2016-11-11 | 2017-03-29 | 中国计量大学 | The devices and methods therefor of measurement biphase gas and liquid flow flow process void rate |
| CN109297678A (en) * | 2018-11-06 | 2019-02-01 | 北京理工大学 | A kind of cavitation gas-liquid flow field measuring system based on conducting probe |
-
2021
- 2021-03-24 CN CN202110315043.9A patent/CN113125511B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58187840A (en) * | 1982-04-28 | 1983-11-02 | Canon Inc | System for detecting bubble in fluid flowline |
| CN1443138A (en) * | 2000-08-07 | 2003-09-17 | 西弗斯仪器公司 | Low-level boron detection and measurement |
| CN101413911A (en) * | 2008-11-27 | 2009-04-22 | 上海交通大学 | Method and device for measuring two-phase flow parameter based on double-end capacitance probe |
| CN102072925A (en) * | 2010-08-16 | 2011-05-25 | 江苏大学 | Stroma moisture and conductivity in situ detector and method for determining salinity |
| CN202024724U (en) * | 2011-01-21 | 2011-11-02 | 华南理工大学 | Bubble detection system for conducting probe |
| WO2014016107A1 (en) * | 2012-07-23 | 2014-01-30 | Forschungszentrum Jülich GmbH | Bubble detector |
| CN103791236A (en) * | 2012-10-30 | 2014-05-14 | 精工爱普生株式会社 | Liquid transport apparatus and bubble determination method |
| CN103207211A (en) * | 2013-03-06 | 2013-07-17 | 中国科学院合肥物质科学研究院 | Device and method for measuring liquid metal two-phase flow void fraction |
| CN105973940A (en) * | 2016-04-26 | 2016-09-28 | 重庆大学 | Four-conducting-probe measurement signal-processing system for gas-liquid two-phase flow detection |
| CN106546634A (en) * | 2016-11-11 | 2017-03-29 | 中国计量大学 | The devices and methods therefor of measurement biphase gas and liquid flow flow process void rate |
| CN109297678A (en) * | 2018-11-06 | 2019-02-01 | 北京理工大学 | A kind of cavitation gas-liquid flow field measuring system based on conducting probe |
Non-Patent Citations (4)
| Title |
|---|
| 吕术森等: "应用电导探针测定鼓泡塔内气泡参数", 《化学反应工程与工艺》 * |
| 吴川等: "基于电导率的煤层气气泡形态井下实时探测装置", 《煤炭学报》 * |
| 李永春等: "ERVC 流道内两相局部分布实验研究", 《核动力工程》 * |
| 韩延德编著: "《核反应堆水化学》", 31 March 2015, 哈尔滨工程大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115598183A (en) * | 2022-11-11 | 2023-01-13 | 利诚检测认证集团股份有限公司（Cn） | Liquid food conductivity detection method and device |
| CN115598183B (en) * | 2022-11-11 | 2024-03-19 | 利诚检测认证集团股份有限公司 | Liquid food conductivity detection method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113125511B (en) | 2022-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2007123032A (en) | DEVICE AND METHOD FOR DETERMINING THE PART OF THE PHASE OF A FLUID USING X-RAY RAYS | |
| CN113125511B (en) | Bubble parameter and boric acid concentration synchronous measurement dual-purpose probe system based on electric conduction method | |
| CN102269565A (en) | Test method of metal transition layer thickness | |
| CN207816870U (en) | A kind of in-situ electrochemical test device for synchrotron radiation GIXAS | |
| Jiang et al. | Tracing methane dissolved in transformer oil by tunable diode laser absorption spectrum | |
| JP5022886B2 (en) | Moisture detection method, moisture detection device and pipe inspection device | |
| CN110208328A (en) | A kind of Test of accuracy system and method for the online pH table of power plant water-steam system | |
| CN110243723A (en) | A method of detection lithium battery positive-negative plate ceramic coating density | |
| Smith et al. | High resolution neutron radiography and tomography of hydrided Zircaloy-4 cladding materials | |
| CN117062290A (en) | Probe system for plume plasma potential diagnosis of electric thruster | |
| CN103837559B (en) | The quick sulphur meter of many target scans formula | |
| Romano et al. | A new portable XRF spectrometer with beam stability control | |
| Yagi et al. | New irradiation system for photon activation analysis by electron linear accelerator | |
| JP2743717B2 (en) | Sensitivity detection method for structural materials and water quality control system for nuclear power plant | |
| RU2562178C1 (en) | Device for measurement of hydrogen diffusion coefficients in metals, and its application method | |
| McElhinney et al. | Calorimetric Determination of the Power in a 1400 kv X-Ray Beam | |
| He et al. | Development and Application of Neutron Imaging Technique at China Advanced Research Reactor | |
| Gabetta et al. | Electrochemical potentials measured at the tip of a growing fatigue crack in demineralized water 93° C: the effect of frequency, wave form and oxygen content | |
| Li et al. | A PIXE system for routine longitudinal scanning of single hair strands | |
| CN106404866A (en) | Device and method for rapidly detecting total hardness of boiler water of ship | |
| ALFANZ | Research on Electrical Non-Contact Fault Detection Method of Photovoltaic Module Using Electric and Magnetic Sensors | |
| Hussey et al. | Neutron radiography for high-resolution studies in low temperature fuel cells | |
| Orbán et al. | Development of Area Detectors for Neutron Beam Instrumentation at the Budapest Neutron Centre | |
| Cao et al. | Research on High Diffraction Efficiency X-ray Fluorescence Spot Generation Technology for X-ray Fluorescence Spectrometer | |
| Savin et al. | Nondestructive examination of fuel channels in PHWR nuclear power plants |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |