Indoor biological membrane corrosion dynamic monitoring system and method

Abstract

The invention provides an indoor biological membrane corrosion dynamic monitoring system and method. The system comprises a biological membrane culture module, a microscopic shooting system, a potential monitoring mechanism and a monitoring output module, wherein the biological membrane culture module comprises a biological membrane test piece and a biological agent cultured on the biological membrane test piece according to requirements; the microscopic shooting system is arranged above the biological membrane culture module, comprises a microscope structure, video recording equipment and a video interaction host, and is used for shooting a real-time visual state of a biological agent; the potential monitoring mechanism is arranged in association with the biological membrane culture module, and a potential signal corresponding to the biological membrane corrosion condition is monitored in real time by electrifying a test piece; and the monitoring output module analyzes and obtains bacterial biofilm corrosion condition change data based on the potential signal distribution condition obtained by the potential monitoring mechanism. By adopting the system, the defects of limited application scene and insufficient practicability in the prior art can be overcome, and the dynamic research on the biological membrane corrosion condition is realized by integrating visual monitoring and potential signal monitoring.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of corrosion monitoring and analysis technology, and particularly relates to an indoor biofilm corrosion dynamic monitoring system and method. BACKGROUND

[0002] There are different degrees of microbial infection and corrosion caused thereby in oil and gas production, storage and transportation systems and sewage treatment pipelines; microbial corrosion accounts for 20% in the corrosion damage of metals and building materials, and in the natural gas industry alone, microbial corrosion loss accounts for 15% to 30% of the corrosion loss related to pipelines. When microorganisms are free in water, they form biofilms, and research shows that only 10% of microorganisms floating freely in the pipeline live in biofilms, so biofilms are the main factor leading to microbial corrosion. In practical applications, the corrosion of metal materials is closely related to the formation of biofilms on the surface thereof, and therefore, reliable dynamic analysis of biofilm corrosion conditions has become one of the important research directions.

[0003] In the past biofilm corrosion and control research, the corrosion coupons are mainly hung in the test process, and the biofilm corrosion morphology on the corrosion coupons and the corrosion conditions are observed after the corrosion experiment is completed. It is necessary to monitor around the corrosion site, and the convenience and practicality are insufficient, and it is difficult to accurately reproduce, and the reliability is insufficient. Therefore, there is a lack of reliable experimental methods and corrosion condition monitoring technical solutions for indoor microbial film corrosion monitoring.

[0004] The information disclosed in the background section of this application is only intended to deepen the understanding of the general background of the application and should not be considered as recognition or in any form as suggesting that this information constitutes prior art known to those skilled in the art. SUMMARY

[0005] To solve the above problems, the present application provides an indoor biofilm corrosion dynamic monitoring system, which can overcome the defects of limited application scenarios and insufficient practicality of the prior art, and comprehensively visualizes monitoring and potential signal monitoring to realize dynamic research of biofilm corrosion conditions. The microscopic photography system is arranged above the biofilm culture module and includes a microscope structure, a video recording device and a video interaction host, and is used for photographing the real-time visual state of the biological agent. The potential monitoring mechanism is arranged in association with the biofilm culture module, and the potential signal corresponding to the biofilm corrosion condition is monitored in real time by energizing the test piece. The monitoring output module obtains the change data of the bacterial biofilm corrosion condition based on the potential signal distribution obtained by the potential monitoring mechanism. Preferably, in one embodiment, the system comprises:

[0006] The biofilm culture module, the microscopic photography system, the potential monitoring mechanism and the monitoring output module;

[0007] The biofilm culture module comprises a biofilm test piece and biological agents cultured on the biofilm test piece according to requirements;

[0008] The microscopic photographing system is arranged above the biofilm culture module and comprises a microscope structure, a video recording device and a video interaction host, and is used for photographing the real-time visual state of the biological agents in the culture process in real time.

[0009] The potential monitoring mechanism is arranged in association with the biofilm culture module, and the biofilm test piece is powered to monitor the potential signal corresponding to the corrosion condition of the biofilm test piece in real time.

[0010] The monitoring output module is used for obtaining the corrosion condition change data of the bacterial biofilm based on the potential signal distribution condition analysis obtained by the potential monitoring mechanism.

[0011] Optionally, in an embodiment, the microscopic photographing system records the growth change morphology of the biofilm in the corrosion process in real time.

[0012] Further, in an embodiment, the biofilm test piece is a metal test piece, the potential monitoring mechanism comprises a potential probe, a current source and a potential sensor, the potential probe is arranged below the biofilm test piece, the current source is used for applying a current signal to the test piece, and the potential sensor is used for measuring the voltage signal of the potential probe in real time.

[0013] In an optional embodiment, the potential monitoring mechanism comprises a potential monitoring host connected with the potential sensor, which is used for receiving the measured voltage signal and obtaining the real-time potential signal data through comparative analysis.

[0014] Preferably, in an embodiment, the potential probes arranged below the biofilm test piece are arranged in a matrix array, cover the entire lower surface of the test piece and are marked.

[0015] In an embodiment, before the current source applies a current signal, the voltage signal of each probe is measured by the potential sensor once as an initial voltage signal, which provides a basis for the voltage information analysis of the subsequent corrosion process.

[0016] Further, in an embodiment, before the corrosion experiment starts, the voltage signal of each probe is measured once after the current source applies a current signal to the metal test piece.

[0017] Optionally, in an embodiment, the measured voltage signal received by the potential monitoring host comprises an initial voltage signal and an experimental monitoring voltage signal measured in the corrosion experiment process, the experimental monitoring voltage signal is compared with the initial voltage signal to obtain the potential difference value at different times, and the real-time corrosion condition of the biofilm is analyzed in combination with a set potential-corrosion rate correlation rule.

[0018] Specifically, in an optional embodiment, the potential-corrosion rate correlation rule is established in advance based on the change relationship between the metal material loss degree of the test piece and the resistance of the metal material, and the metal material loss rate is used to reflect the corrosion rate of the biofilm test piece.

[0019] Based on the application aspect of the system in any one or more of the above embodiments, the application further provides an indoor biofilm corrosion dynamic monitoring method, which is applied to the system in any one or more of the above embodiments, and the method comprises:

[0020] Culturing biological agents on the biofilm test piece according to requirements;

[0021] Using the microscopic photographing system arranged above the biofilm culture module to photograph the real-time visual state of the biological agents in the culture process in real time and output;

[0022] Passing current through the test piece by the potential monitoring mechanism to monitor the potential signal corresponding to the corrosion of the biofilm test piece in real time;

[0023] The monitoring output module is used to obtain the corrosion change data of the bacterial biofilm based on the potential signal distribution obtained by the potential monitoring mechanism.

[0024] Compared with the closest prior art, the application has the following beneficial effects:

[0025] The application provides an indoor biofilm corrosion dynamic monitoring system and method, which comprises a biofilm culture module, a microscopic photographing system, a potential monitoring mechanism and a monitoring output module; biological agents are cultured on a biofilm test piece according to requirements; the microscopic photographing system is arranged above the biofilm culture module and comprises a microscope structure, a video recording device and a video interactive host, and is used to photograph the real-time visual state of the biological agents; the growth change of the biofilm is photographed and recorded in real time, so that the user can flexibly observe the morphology of the biofilm and clearly understand the experimental state and the corrosion development process through the video host associated with the laboratory.

[0026] Further, the potential monitoring mechanism is arranged in association with the biofilm culture module, and the potential signal corresponding to the corrosion of the biofilm is monitored in real time by passing current through the test piece; the monitoring output module obtains the corrosion change data of the bacterial biofilm based on the potential signal distribution obtained by the potential monitoring mechanism; the potential probe array is arranged, the potential measurement signal is collected according to the set frequency, the dynamic corrosion of the test piece is reflected by the change of the resistance value corresponding to the loss of the metal test piece, and the corrosion mechanism of the biofilm can be reliably tracked and studied in combination with the morphology observation technology.

[0027] Other features and advantages of the present application will be set forth in the description that follows, and in part will be apparent from the description, or can be learned by practice of the application. The purposes and other advantages of the present application will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. BRIEF DESCRIPTION OF DRAWINGS

[0028] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings:

[0029] Figure 1 is a structural schematic diagram of an indoor biofilm corrosion dynamic monitoring system provided by an embodiment of the present application;

[0030] Figure 2 is a flowchart of an indoor biofilm corrosion dynamic monitoring method provided by another embodiment of the present application. DETAILED DESCRIPTION

[0031] The embodiments of the present application will be described in detail with reference to the drawings and embodiments below, so that the person skilled in the art can fully understand how the present application applies technical means to solve technical problems and achieve technical effects, and implement the present application according to the above implementation process. It should be noted that, as long as there is no conflict, each embodiment in the present application and each feature of each embodiment can be combined with each other, and the technical solutions formed thereby are all within the protection scope of the present application.

[0032] Although the flowchart describes each operation as a sequential process, many of the operations can be implemented in parallel, concurrently or simultaneously. The order of the operations can be rearranged. The process can be terminated when its operations are completed, but can also have additional steps not included in the figure. The process can correspond to a method, function, routine, subroutine, or the like.

[0033] The computer device includes a user device and a network device. The user device or client includes but is not limited to a computer, a smart phone, a PDA (Personal Digital Assistant), etc.; the network device includes but is not limited to a single network server, a server group composed of multiple network servers, or a cloud composed of a large number of computers or network servers based on cloud computing. The computer device can be independently operated to implement the present application, or can be connected to a network and interact with other computer devices in the network to implement the present application. The network in which the computer device is located includes but is not limited to the Internet, a wide area network, a metropolitan area network, a local area network, a VPN network, etc.

[0034] The terms "first", "second", etc. can be used herein to describe various elements, but the elements should not be limited by these terms. The terms are only used to differentiate one element from another. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. When an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements can be present.

[0035] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising", when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0036] Microbiologically influenced corrosion (MIC) refers to the corrosion process under the participation of microbial life activities. There is different degree of microbial infection and corrosion caused thereby in oil and gas exploitation, storage and transportation systems and sewage treatment pipelines. According to statistics, microbial corrosion accounts for 20% of corrosion damage of metals and building materials. In the natural gas industry alone, microbial corrosion loss accounts for 15% to 30% of corrosion loss related to pipelines.

[0037] When microorganisms are free in water, they form biofilms. Studies have shown that only 10% of microorganisms floating freely in pipelines live in biofilms. Therefore, biofilms are the main factor leading to microbial corrosion. In practical applications, corrosion of metal materials is closely related to the formation of biofilms on their surfaces. Therefore, reliable dynamic analysis of biofilm corrosion has become one of the important research directions.

[0038] In the past research on biofilm corrosion and control, the corrosion coupons were mainly hung in the test process. After the corrosion experiment was completed, the biofilm corrosion morphology on the corrosion coupon was observed and the corrosion condition was measured,

[0039] For example, patent document CN108333436A provides a distributed electric field fingerprint detection system and method based on a hanging piece. A voltage collection electrode matrix and a temperature sensor are arranged on the corrosion hanging piece, and the hanging piece is placed in the corrosion environment to be synchronously detected. The real-time voltage and its changes of the matrix feedback are collected after the hanging piece is loaded with an excitation current, and the local corrosion is tracked and studied. Patent document CN108318570A provides a modular electric field fingerprint detection system and method based on a hanging piece. The corrosion hanging piece method is combined with the electric field fingerprint method. A voltage collection electrode matrix and a temperature sensor are arranged on the corrosion hanging piece, and the hanging piece is placed in the corrosion environment to be synchronously detected. The real-time voltage and its changes of the hanging piece after being loaded with an excitation current are detected through the matrix switch to control the on-off between the voltage collection electrode matrix and the data collection module, and the initiation and development process of local corrosion are captured. The above-mentioned prior art needs to monitor around the corrosion site, and has poor convenience and practicability, and is difficult to accurately reproduce, and has poor reliability; there is a lack of experimental methods and technical solutions for indoor corrosion monitoring of microbial membranes.

[0040] The influence of bacterial biofilm on corrosion can be monitored through an indoor experimental system, which can be used to optimize subsequent development of bacterial corrosion protection measures and monitor the effectiveness of these methods.

[0041] Therefore, an indoor biofilm corrosion monitoring experimental method and system are provided. The method covers a layer of biological agent on a metal biofilm test piece, cultivates bacteria in the biological agent, and provides sufficient nutrient solution for the bacteria to grow. A microscope video recording lens is installed above the biofilm test piece to real-time shoot and record the growth and change of the biofilm. The video recording system and the lens are connected to a video host of the indoor laboratory to observe the morphology of the biofilm. A potential probe is installed below the biofilm test piece. The potential probe is arranged in a matrix array below the test piece. A constant current source is applied to the test piece through an external constant current source. The potential signal is collected on the potential sensor and transmitted to a potential monitoring host. The collected potential information data is analyzed and processed by the potential monitoring host to measure and real-time monitor the corrosion of the test piece. Finally, the purpose of real-time monitoring of bacterial biofilm corrosion is achieved.

[0042] Next, the structural components, connection modes and functional principles of the system of the embodiment of the present application are described in detail based on the drawings. Although the logical order of each operation is shown in the process of describing the system structure and operation principle, in some cases, the operations shown or described can be performed in an order different from that here.

[0043] Embodiment one:

[0044] Figure 1The structural schematic diagram of the indoor biofilm corrosion dynamic monitoring system provided by the embodiment of the present application is shown in the figure, and the biofilm corrosion dynamic monitoring system provided by the embodiment of the present application is shown in the figure. Figure 1 It can be seen that the system comprises:

[0045] The biofilm culture module, the microscopic photographing system, the potential monitoring mechanism and the monitoring output module;

[0046] The biofilm culture module comprises a biofilm test piece and biological agents cultured on the biofilm test piece according to requirements;

[0047] The microscopic photographing system is arranged above the biofilm culture module and comprises a microscope structure, a video recording device and a video interactive host, and is used for real-time photographing of the real-time visual state in the biological agent culture process;

[0048] The potential monitoring mechanism is arranged in association with the biofilm culture module, and the biofilm test piece is powered to monitor the potential signal corresponding to the corrosion condition of the biofilm test piece in real time;

[0049] The monitoring output module is used for obtaining the corrosion condition distribution data of the bacterial biofilm based on the potential signal distribution condition obtained by the potential monitoring mechanism.

[0050] Regarding Figure 1 The structural schematic diagram of the system is shown in the figure, wherein the A view is a top view for the biological agent test piece, the B view is a side view, and the C view is a bottom view.

[0051] In actual application, the biofilm test piece in the biofilm culture module is cultured with biological agents, and the biological agents comprise bacteria and nutrient solution; the nutrient solution provides sufficient nutrient substances for the growth and formation of the biofilm; the biological agents, the bacteria and the nutrient solution can be flexibly set according to experimental research requirements; for example, a layer of biological agents is covered on the metal biofilm test piece, and the biological agents comprise bacteria, nutrient solution or on-site water samples; from Figure 1 The position of the biological agents on the test piece can be seen from the A view; the water sample in the industrial on-site pipeline can be used as the nutrient solution according to requirements.

[0052] The indoor biofilm corrosion dynamic monitoring system provided by the embodiment of the present application uses the microscopic photographing system arranged in association with the biological agent test piece to real-time record the growth and change morphology of the biofilm in the corrosion process, real-time photographs and records the growth and change of the biofilm through the microscope and the video recording system; the video interactive host is used for display; based on this, the operator can intuitively and conveniently check the morphology state of the biofilm at different times.

[0053] In actual application, the microscope and the video recording system are installed above the metal biofilm test piece for observing the biofilm and recording the growth and change of the biofilm in real time. The microscope and the video recording system are connected with the video host of the indoor laboratory, and the recorded video and the photographed picture signal are transmitted to the video host, and the change of the biofilm is observed on the video host. In the optional embodiment, the microscope and the video recording system are located directly above the test piece, and the height is about 0.1 m. In actual shooting, it is ensured that the lens can observe the image of the whole test piece.

[0054] Preferably, in one embodiment, a storage module is arranged in the video interaction host, and the video data obtained at different time stages can be temporarily stored. Based on this, the user can view the historical video record according to the requirement.

[0055] Preferably, in one embodiment, the biofilm test piece is usually a metal test piece.

[0056] The system of the application sets the potential probe as the detection probe, detects the potential signal on the biofilm test piece in real time through the potential probe, reflects the corrosion condition of the test piece to the potential change data of the test piece, and finally achieves the purpose of monitoring the corrosion condition of the bacterial biofilm.

[0057] In the optional embodiment, the potential monitoring mechanism includes a potential probe, a current source and a potential sensor. The potential probe is arranged below the biofilm test piece, the current source is used to apply a current signal to the test piece, and the voltage signal of the potential probe is measured in real time through the potential sensor. The change of the corresponding voltage signal of the test piece in the corrosion test process is analyzed to determine the corrosion rate.

[0058] In one embodiment, the potential monitoring mechanism includes a potential monitoring host connected with the potential sensor, which is used to receive the measured voltage signal and obtain the real-time potential signal data through comparative analysis.

[0059] The potential probes are arranged in a matrix array below the biofilm test piece, covering the entire lower surface of the test piece and being marked.

[0060] In actual application, the potential probes are installed below the biofilm test piece, arranged in a matrix array, covering the entire lower surface of the test piece, and sequentially marked from 1 to 85. Figure 1 The distribution of the probes can be seen from the B view and the C view.

[0061] Before the corrosion experiment starts, the voltage signals of the probes are measured once by the potential sensor as the initial value of the voltage signal, which provides a basis for the voltage information analysis in the subsequent corrosion process.

[0062] After the corrosion experiment, the current source continuously applies a current signal to the metal test piece, and the voltage signals of the probes are continuously measured at a set period.

[0063] Since the loss of metal material will cause the change of resistance value, and the corrosion condition can be obtained by comparing the different potential difference value with the initial value, the correlation between the corrosion rate and the potential data in the field, the size of the potential can reflect the data size of the corrosion rate to a certain extent; the voltage signal measurement value (potential difference value) measured by the potential sensor before and after the corrosion experiment is transmitted to the potential monitoring host in the embodiment of the application, the potential information data collected is matched by the potential monitoring host, the corrosion rate matched with the real-time potential data is determined, and the corrosion performance corresponding to the current test piece is characterized, so as to provide support for evaluating the loss of metal test piece caused by biofilm corrosion.

[0064] The measured voltage signal received by the potential monitoring host includes an initial voltage signal and an experimental monitoring voltage signal measured during the corrosion experiment, the experimental monitoring voltage signal is compared with the initial voltage signal to obtain the potential difference value at different times, and the corrosion rate of the biofilm is analyzed in combination with the set potential-corrosion rate correlation rule.

[0065] The potential-corrosion rate correlation rule is pre-established based on the relationship between the loss degree of the test piece metal material and the change of the resistance of the metal material, and is stored in the potential monitoring host, and the corrosion rate of the biofilm test piece is reflected by the loss rate of the test piece metal material.

[0066] The above embodiment is to reduce the data processing pressure of the potential monitoring host, and in actual application, a microprocessor or other operation mechanism can be set in the potential monitoring host based on the potential difference value signal to realize real-time operation and obtain the corresponding dynamic corrosion rate data according to the needs.

[0067] In the above embodiment, in actual application, the staff can determine the corrosion rate record corresponding to different potential data in the potential-corrosion rate correlation rule according to the following operation:

[0068]

[0069] Among them,

[0070]

[0071] In the formula: V represents the corrosion rate, mm / a; in actual operation, mA / cm 2 and mm / a can be converted through the conversion relationship (1mA / cm 2 corr represents the metal corrosion current density, mA / cm 2 ​B is a constant, typically taken as 20–25 mV; N = W / n, representing the weight of the metal equivalent (g); W represents the atomic weight of the metal, g / mol; n represents the valence number of the metal atom; F represents the Faraday constant, generally considered to be F = 96485 C / mol; R p The polarization resistance is represented in Ω; ΔE represents the polarization potential, the electrode potential after current flows through it, in V; Δi represents the polarization current, in mA / cm. 2 .

[0072] In the indoor biofilm corrosion dynamic monitoring system provided in this embodiment of the invention, each module or unit structure can operate independently or in combination according to the indoor experimental setup requirements and signal transmission requirements to achieve the corresponding technical effects.

[0073] Example 2:

[0074] The above-disclosed embodiments of the present invention have described the system in detail. Based on other aspects of the system described in any one or more of the above embodiments, the present invention also provides a method for dynamic monitoring of indoor biofilm corrosion, which is applied to the indoor biofilm corrosion dynamic monitoring system described in any one or more of the above embodiments. Specific embodiments are given below for detailed description.

[0075] Specifically, Figure 2 The diagram shows a flowchart of the indoor biofilm corrosion dynamic monitoring method provided in an embodiment of the present invention. Figure 2 As shown, the method includes:

[0076] Cultivate biological agents on biofilm test strips as needed;

[0077] The real-time visual status of the biological agent culture process is captured and output using a microscopic imaging system installed above the biofilm culture module;

[0078] The potential signal corresponding to the corrosion of the biofilm test piece is monitored in real time by energizing the test piece with a potential monitoring mechanism.

[0079] The monitoring output module is used to analyze the distribution of potential signals obtained by the potential monitoring mechanism to obtain data on changes in bacterial biofilm corrosion.

[0080] The above method is implemented based on the aforementioned indoor biofilm corrosion dynamic monitoring system, which includes:

[0081] Biofilm culture module, microscopic imaging system, potential monitoring mechanism and monitoring output module;

[0082] The biofilm culture module includes a biofilm sample and a biological agent for culturing on the biofilm sample as needed;

[0083] The microscopic photographing system is arranged above the biological membrane culture module, and comprises a microscope structure, a video recording device and a video interaction host, and is used for photographing the real-time visible state in the biological agent culture process in real time.

[0084] The potential monitoring mechanism is arranged in association with the biological membrane culture module, and the potential signal corresponding to the corrosion condition of the biological membrane test piece is monitored in real time by electrifying the test piece.

[0085] The monitoring output module is used for obtaining the corrosion condition change data of the bacterial biological membrane based on the potential signal distribution condition analysis obtained by the potential monitoring mechanism.

[0086] Optionally, in an embodiment, the microscopic photographing system records the growth change morphology of the biological membrane in the corrosion process in real time.

[0087] Further, in an embodiment, the biological membrane test piece is a metal test piece, and the potential monitoring mechanism comprises a potential probe, a current source and a potential sensor; the potential probe is arranged below the biological membrane test piece, the current source is used for applying a current signal to the test piece, and the potential sensor is used for measuring the voltage signal of the potential probe in real time.

[0088] In an optional embodiment, the potential monitoring mechanism comprises a potential monitoring host connected with the potential sensor, and is used for receiving the measured voltage signal and obtaining the real-time potential signal data by comparison and analysis.

[0089] Preferably, in an embodiment, the potential probes arranged below the biological membrane test piece are arranged in a matrix array, cover the entire lower surface of the test piece, and are marked.

[0090] In an embodiment, before the current source applies a current, the voltage signal of each probe is measured by the potential sensor once, as an initial voltage signal, to provide a basis for the voltage information analysis in the subsequent corrosion process.

[0091] Further, in an embodiment, before the corrosion experiment starts, the voltage signal of each probe is measured once after the current source applies a current signal to the metal test piece.

[0092] Optionally, in an embodiment, the measured voltage signal received by the potential monitoring host comprises an initial voltage signal and an experimental monitoring voltage signal measured in the corrosion experiment process, the experimental monitoring voltage signal is compared with the initial voltage signal to obtain the potential difference value at different times, and the real-time corrosion condition of the biological membrane is analyzed in combination with a set potential-corrosion rate correlation rule.

[0093] Specifically, in an optional embodiment, the potential-corrosion rate correlation rule is established in advance based on the change relationship between the loss degree of the test piece metal material and the change of the resistance of the metal material, and the loss rate of the test piece metal material is used to reflect the corrosion rate of the biological membrane test piece.

[0094] For each method embodiment described above, for the purpose of simple description, it is expressed as a combination of a series of actions, but those skilled in the art should know that the present application is not limited by the order of the described actions, because according to the present application, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily necessary for the present application.

[0095] It should be noted that in other embodiments of the present application, the method can also be obtained by combining one or more of the above embodiments to obtain a new indoor biofilm corrosion dynamic monitoring method, so as to realize convenient dynamic monitoring and research on biofilm corrosion.

[0096] Embodiment three:

[0097] It should be noted that based on the method in any one or more of the above embodiments of the present application, the present application also provides a storage medium, which stores a program code for realizing the method in any one or more of the above embodiments, and the code can realize the indoor biofilm corrosion dynamic monitoring method as described above when executed by an operating system.

[0098] It should be understood that the embodiments disclosed in the present application are not limited to the specific structure, processing steps or materials disclosed herein, but should extend to equivalent alternatives of these features understood by those skilled in the related art. It should also be understood that the terms used herein are only for the purpose of describing the specific embodiments and do not mean limitation.

[0099] The phrase "one embodiment" mentioned in the specification means that the specific features, structures or characteristics described in connection with the embodiment are included in at least one embodiment of the present application. Therefore, the phrase "one embodiment" appearing throughout the specification does not necessarily mean the same embodiment.

[0100] Although the embodiments of the present application are disclosed as above, the content described is only for the purpose of understanding the embodiments adopted by the present application, and is not intended to limit the present application. Any person skilled in the art of the present application can make any modification and change in the form and details without departing from the spirit and scope of the present application, but the patent protection scope of the present application shall be subject to the scope defined by the appended claims.

Claims

1. An indoor biofilm corrosion dynamic monitoring system, characterized in that, The system includes: Biofilm culture module, microscopic imaging system, potential monitoring mechanism and monitoring output module; The biofilm culture module includes a biofilm sample and a biological agent for culturing on the biofilm sample as needed; The microscopic imaging system is located above the biofilm culture module and includes a microscope structure, video recording equipment and a video interactive host, used to capture real-time visual data of the bio-agent culture process. The potential monitoring mechanism is set up in conjunction with the biofilm culture module, and monitors the potential signal corresponding to the corrosion of the biofilm test piece in real time by energizing the test piece. The monitoring output module is used to analyze the distribution of potential signals obtained by the potential monitoring mechanism to obtain data on changes in bacterial biofilm corrosion.

2. The system according to claim 1, characterized in that, The microscopic imaging system records the growth and morphological changes of the biofilm during the corrosion process in real time.

3. The system according to claim 1, characterized in that, The biofilm test piece is a metal test piece, and the potential monitoring mechanism includes a potential probe, a current source, and a potential sensor. The potential probe is placed below the biofilm test piece, and the current source applies a current signal to the test piece. The potential sensor measures the voltage signal of the potential probe in real time.

4. The system according to claim 1, characterized in that, The potential monitoring mechanism includes a potential monitoring host, which is connected to a potential sensor to receive the measured voltage signal and compare and analyze it to obtain real-time potential signal data.

5. The system according to claim 1, characterized in that, The potential probes were arranged in a matrix below the biofilm sample, covering the entire lower surface of the sample, and each probe was marked.

6. The system according to claim 1, characterized in that, Before the current source is energized, the voltage signal of each probe is measured once using a potential sensor as the initial voltage signal, which provides a basis for voltage information analysis of the subsequent corrosion process.

7. The system according to claim 1, characterized in that, Before the corrosion experiment begins, the current source applies a current signal to the metal sample, and then the voltage signal of each probe is measured once.

8. The system according to claim 5, characterized in that, The voltage signals received by the potential monitoring host include the initial voltage signal and the experimental monitoring voltage signal measured during the corrosion experiment. The experimental monitoring voltage signal is compared with the initial voltage signal to obtain the potential difference value at different times. Combined with the set potential-corrosion rate correlation rule, the real-time corrosion status of the biofilm is analyzed.

9. The system according to claim 1, characterized in that, The potential-corrosion rate correlation rule is established in advance based on the relationship between the degree of metal material loss of the test piece and the change in the metal material resistance, and the metal material loss rate of the test piece reflects the corrosion rate of the biofilm test piece.

10. A method for dynamic monitoring of indoor biofilm corrosion, wherein the method is applied to the system described in any one of claims 1 to 9, characterized in that, The method includes: Cultivate biological agents on biofilm test strips as needed; The real-time visual status of the biological agent culture process is captured and output using a microscopic imaging system installed above the biofilm culture module; The potential signal corresponding to the corrosion of the biofilm test piece is monitored in real time by energizing the test piece with a potential monitoring mechanism. The monitoring output module is used to analyze the distribution of potential signals obtained by the potential monitoring mechanism to obtain data on changes in bacterial biofilm corrosion.

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