CN214472665U - Pipeline microbial corrosion monitoring and early warning system - Google Patents
Pipeline microbial corrosion monitoring and early warning system Download PDFInfo
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- CN214472665U CN214472665U CN202120230244.4U CN202120230244U CN214472665U CN 214472665 U CN214472665 U CN 214472665U CN 202120230244 U CN202120230244 U CN 202120230244U CN 214472665 U CN214472665 U CN 214472665U
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Abstract
The utility model discloses a pipeline microbial corrosion monitoring early warning system, including microbial corrosion on-line monitoring device, data department server or enterprise's cloud ware, wherein microbial corrosion on-line monitoring device is one set or more, and every set of microbial corrosion on-line monitoring device independently installs in the monitoring point of industrial field, and the corrosion monitoring data GPRS data transmission module or the GPRS wireless gateway that microbial corrosion on-line monitoring device gathered upload to appointed data processing server of network or enterprise's cloud ware. The system can dynamically monitor the whole process of generation and development of microbial corrosion in the pipeline in real time, and can also dynamically monitor the growth condition of the microbial film of the pipeline and the corrosion state of the pipeline in real time, thereby improving the efficiency and the accuracy of monitoring the microbial corrosion; in the field of practical industrial application, the injection time and the injection amount of the bactericide on site can be guided, the injection effect of the bactericide can be evaluated, and the production requirement can be met.
Description
Technical Field
The utility model relates to a corrosion monitoring technology specifically is a pipeline microbiological corrosion monitoring early warning system.
Background
Metal corrosion due to natural environment or production process is ubiquitous in various fields of production life, and according to the results of american society of corrosion engineers (NACE) survey, the global corrosion cost in 2013 has reached $ 2.5 trillion, exceeding 3.4% of the global total GDP in the year, and the loss caused by microbial corrosion therein accounts for about 20%.
In the oil and gas field industry of China, a large amount of microorganisms exist in a produced water system, and the microorganisms have a great acceleration effect on the corrosion of pipelines. The detection methods of microorganisms are mainly divided into two main types, namely physical detection methods and extract detection methods. Physical detection methods are mainly classified into a turbidimetric method, a cell weight method, and a maximum likelihood estimation method (MPN method). The physical detection method mainly aims at counting the number of bacteria and judging the activity of the bacteria; the method for detecting the extract mainly comprises the steps of comparing the total carbon and the total nitrogen of bacteria, performing fluorescent staining and performing real-time fluorescent quantitative PCR, and the method for detecting the extract mainly judges the number of the bacteria according to the individual difference of each type of cells. The two methods mainly stay in a laboratory analysis stage at present, and are difficult to be widely applied under complicated and changeable field working conditions.
At present, no on-line monitoring equipment and system for judging material corrosion by monitoring the growth condition of microbial films exist in China. The existing means mainly stay in the stage of field water sampling and laboratory analysis, the consumed experimental period is long, the deviation of the analysis result is large, and especially the information of each stage of microbial corrosion cannot be monitored and reduced.
The method for monitoring the growth condition of the microbial film is reported abroad, and a monitoring instrument and a sensor which can be commercialized are also provided, wherein the growth condition of the microbial film is judged by combining the existing theoretical model through monitoring electric signals fed back by the sensor every day, so that the injection time and the injection amount of the bactericide are guided, and the injection effect of the bactericide is evaluated.
The existing foreign instruments also have certain limitations:
1) the current measurement precision is in the mu A level, and the resolution is low;
2) data is stored in an internal memory, the capacity is limited, and real-time remote transmission cannot be realized;
3) a single measurement channel is adopted, a standby or contrast channel is not adopted, and the environmental adaptability and maintainability are general;
SUMMERY OF THE UTILITY MODEL
The above-mentioned not enough to exist among the prior art, the to-be-solved problem of the utility model is to provide a pipeline microbial corrosion monitoring early warning system that can real-time, the inside microbial corrosion of dynamic monitoring pipeline takes place, develops the overall process.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the utility model provides a pipeline microbial corrosion monitoring early warning system, including microbial corrosion on-line monitoring device, data department server or enterprise's cloud ware, wherein microbial corrosion on-line monitoring device is one set or more, and every set of microbial corrosion on-line monitoring device independently installs in the monitoring point of industrial field, and the corrosion monitoring data GPRS data transmission module or the GPRS wireless gateway that microbial corrosion on-line monitoring device gathered upload to appointed data processing server of network or enterprise's cloud ware.
The microbial corrosion on-line monitoring device comprises a corrosion monitor, a microbial corrosion monitoring sensor and a test cable, wherein the microbial corrosion monitoring sensor is connected to a microbial sensor input interface of the corrosion monitor through the test cable, and the microbial corrosion monitoring sensor is installed at a tapered thread short section through the front end of the microbial corrosion monitoring sensor and inserted into a pipeline to be tested.
The corrosion monitor comprises a central processing unit, a signal acquisition module, a signal conditioning module, a communication module and a storage module, wherein the central processing unit is connected with the signal acquisition module through the signal conditioning module, a leading-out wire of the signal conditioning module is connected to an interface of the microbial corrosion monitoring sensor, an input end of the signal acquisition module is connected with the microbial corrosion monitoring sensor, an output signal of the signal acquisition module enters the central processing unit after being processed and transformed by the signal conditioning module, the central processing unit performs data interaction with the storage module, and the central processing unit uploads data to a data processing server or an enterprise cloud server designated by a network through the communication module via a GPRS data transmission module or a GPRS wireless gateway.
The signal conditioning module comprises a logic control module, a digital frequency synthesizer, an analog-to-digital converter, a first signal amplifier and a second signal amplifier, wherein the digital frequency synthesizer receives an instruction of the central processing unit through the logic control module, outputs an alternating current polarization voltage signal with adjustable frequency and is connected to the reverse input end of the first signal amplifier, and the output end of the first signal amplifier is connected with the microbial corrosion monitoring sensor through a second resistor; a feedback signal of the microbial corrosion monitoring sensor enters the input end of the analog-to-digital converter through the second signal amplifier, the gain unit and the filtering unit; the output digital signal of the analog/digital converter is input to the central processing unit through the DFT unit and the logic control module.
The microbial corrosion monitoring sensor comprises a first shunt, a second shunt, a measuring test piece and a first sensor framework, wherein the measuring test pieces are divided into two groups, the measuring test pieces of different groups are alternately and fixedly arranged on the first sensor framework, one end of each of the two groups of test pieces is respectively connected with the first shunt and the second shunt, and the first shunt and the second shunt are respectively arranged at two ends of the first sensor framework; the second shunt is connected with the sensor socket through a mounting nut.
The first sensor framework is in a circular tube shape, and 2N grooves are uniformly distributed on the periphery of the circular tube in the axial direction; the 2N measuring test pieces are of strip structures and are fixedly arranged in the grooves outside the first sensor framework respectively.
The mounting nut comprises a nut head and a thread section coaxially connected with the nut head, and a cavity communicated with the inside of the nut head is formed inside the thread section.
The first shunt and the second shunt have the same structure and are uniformly distributed gear-shaped rings, and the number of teeth is N; the first shunt and the second shunt are respectively led out of a lead, and the leads are connected to corresponding pins of the sensor socket through the first sensor framework and an inner cavity of the mounting nut; a bottom packaging pad is arranged on the outer side of the first shunt and is packaged between the bottom packaging pad and the end part of the measuring test piece through epoxy resin; and the second shunt and the mounting nut are sealed, filled and fixed by using epoxy resin.
The utility model has the following beneficial effects and advantages:
1. the utility model can dynamically monitor the whole process of the generation and development of the microbial corrosion in the pipeline in real time by collecting the current and voltage signals related to the growth condition of the microbial film, and also can dynamically monitor the growth condition of the microbial film in the pipeline and the corrosion state of the pipeline in real time, thereby improving the efficiency and the accuracy of monitoring the microbial corrosion; in the field of practical industrial application, the injection time and the injection amount of the bactericide on site can be guided, the injection effect of the bactericide can be evaluated, and the production requirement can be met.
2. Compared with the traditional microbial corrosion analysis method, the utility model has the characteristics of high efficiency, whole process monitoring and real-time remote data transmission; the resolution ratio of the monitoring current of the corrosion monitor can reach nA level.
3. The utility model provides a plurality of data storage and transmission modes, long-range GPRS data transmission, RS232/485 data transmission, periodic storage, local data reading and uploading, etc., the system compatibility is extensive, the adaptability is stronger; and the technology of the cloud platform is supported, and seamless connection of the output signal of the corrosion monitor and the cloud platform can be realized.
4. The utility model provides a solution for special application scene, which adopts a state indicator lamp to alarm and outputs a judgment result corresponding to the microbial corrosion state under the condition of no data remote transmission; meanwhile, a hand-copy device is configured, and the acquisition of memory data is realized through a wireless communication technology; the hand-held device has a wireless transmission function, and when the conditions allow, data are uploaded to the system platform.
Drawings
FIG. 1 is a topological diagram of the pipeline microbial corrosion monitoring and early warning system structure;
FIG. 2 is a schematic view of the field installation structure of the online monitoring device for microbial corrosion of the present invention;
FIG. 3 is a block diagram of an electrical structure of a corrosion monitor in the online monitoring device for microbial corrosion;
FIG. 4 is a schematic diagram of an electrical configuration of a signal conditioning module in the corrosion monitor;
FIG. 5 is a schematic view of the external structure of the microbial corrosion monitoring sensor of the present invention;
FIG. 6 is a schematic view of the structure of a microbial corrosion monitoring sensor;
FIG. 7 is a schematic view of a grouping of measurement test pieces;
FIG. 8 is a flow chart of the corrosion monitor of the present invention;
fig. 9 is a graph of data for monitoring microbial corrosion according to an embodiment of the present invention.
The system comprises a corrosion monitor 1, a wireless antenna 2, an expansion interface 3, a test cable 4, a microbial corrosion monitoring sensor 5, a bottom packaging pad 501, a first shunt 502, a measurement test piece 503, a sensor framework 504, an installation nut 505, a sensor socket 506 and a second shunt 507, wherein the first shunt is arranged on the bottom packaging pad; 6 is a tapered thread nipple, 7 is a pipeline, 8 is a sensor plug, and 9 is epoxy resin.
Detailed Description
The invention will be further explained with reference to the drawings attached to the specification.
The utility model provides a pipeline microbial corrosion monitoring early warning system, including microbial corrosion on-line monitoring device, data processing server or enterprise's cloud ware, wherein microbial corrosion on-line monitoring device is one set or more, and every set of microbial corrosion on-line monitoring device independently installs in the monitoring point of industrial field, and the corrosion monitoring data that microbial corrosion on-line monitoring device gathered passes to appointed data processing server of network or enterprise's cloud ware through inside integrated GPRS data transmission module of corrosion monitor or GPRS wireless gateway.
As shown in fig. 1, the online monitoring system comprises N online microbial corrosion monitoring devices, wherein each online microbial corrosion monitoring device acquires a signal of a microbial corrosion monitoring sensor, and transmits data to an enterprise cloud platform through a mobile internet; the system data processing server is in communication connection with each microbial corrosion on-line monitoring device through a gateway or a GPRS data transmission module, and finally, the system data processing server is connected to an enterprise cloud platform through the Internet.
The utility model realizes the overall process tracking and early warning of the microbial corrosion state through monitoring and analyzing the microbial corrosion data; in addition, the system also provides the functions of remote GPRS data transmission, Beidou remote data transmission, data timing storage and backup, local data reading and uploading and the like, and the system is wider in compatibility and stronger in adaptability.
As shown in fig. 2, the microbial corrosion on-line monitoring device comprises a corrosion monitor 1, a microbial corrosion monitoring sensor 5 and a test cable 4, wherein the microbial corrosion monitoring sensor 5 is connected to a sensor input interface of the corrosion monitor 1 through the test cable 4, and the microbial corrosion monitoring sensor 5 is installed at the front end of the sensor and inserted into a measured pipeline 7 through a tapered thread nipple 6.
As shown in fig. 3, the corrosion monitor 1 includes a central processing unit (this embodiment adopts STM32F103C8T6), a signal acquisition module, a signal conditioning module, a communication module and a storage module, wherein the central processing unit is connected with the signal acquisition module through the signal conditioning module, a lead-out wire of the signal conditioning module is connected to an interface of the microbial corrosion monitoring sensor, an input end of the signal acquisition module is connected with the microbial corrosion monitoring sensor, an output signal of the signal acquisition module enters the central processing unit after being processed and transformed by the signal conditioning module, the central processing unit performs data interaction with the storage module, and the central processing unit uploads data to a data processing server or an enterprise cloud server designated by a network through the communication module via a GPRS data transmission module or a GPRS wireless gateway.
As shown in fig. 4, the signal conditioning module includes a logic control module, a digital frequency synthesizer, an analog/digital converter, a first signal amplifier and a second signal amplifier, wherein the digital frequency synthesizer receives an instruction from the central processing unit through the logic control module, outputs an ac polarization voltage signal with adjustable frequency to the reverse input end of the first signal amplifier, and the output end of the first signal amplifier is connected to the microbial corrosion monitoring sensor through a second resistor; a feedback signal of the microbial corrosion monitoring sensor enters the input end of the analog-to-digital converter through the second signal amplifier, the gain unit and the filtering unit; the output digital signal of the analog/digital converter is input to the central processing unit through the DFT unit and the logic control module.
In this embodiment, a digital frequency synthesizer (DDS) receives an instruction from a central processing unit through a logic control module, outputs a polarized ac voltage signal, is output by a first signal amplifier a1, and is applied to the test strips 503 (divided into a group a test strips and a group B test strips) of the biosensor through a second resistor R2; the feedback signal enters the input end of an 8-channel 24-bit analog-to-digital converter (ADC) through a second signal amplifier A2, a gain unit and a filtering unit; the channel A/D converter outputs digital signal, which is converted by DFT unit, and then the measured data is extracted and input to CPU through logic control module.
As shown in fig. 5 to 7, the microbial corrosion monitoring sensor includes a first shunt 502, a second shunt 507, a measurement test piece 503 and a first sensor framework 504, wherein the measurement test piece 503 is divided into two groups, the measurement test pieces of different groups are alternately and fixedly mounted on the first sensor framework 504, one end of each of the two groups of test pieces is respectively connected with the first shunt 502 and the second shunt 507, and the first shunt 502 and the second shunt 507 are respectively disposed at two ends of the first sensor framework 504; the second shunt 507 is connected to the sensor socket 506 via a mounting nut 505.
In this embodiment, the measurement test piece 503 is connected to the sensor socket 506 through an internal conductive wire, and the measurement test piece 503, the conductive wire, and the sensor socket 506 form a sealing structure through epoxy resin.
The first sensor framework 504 is in a shape of a circular tube, and 2N grooves are uniformly distributed on the periphery of the circular tube in the axial direction; the 2N measurement test pieces 503 are all strip-shaped structures and are respectively and fixedly mounted in the grooves outside the first sensor framework 504. The mounting nut 505 includes a nut head and a threaded section coaxially connected to the nut head, and a cavity communicating with the inside of the nut head is formed inside the threaded section for routing.
The first flow divider 502 and the second flow divider 507 have the same structure and are uniformly distributed gear rings, and the number of teeth is N; the first shunt 502 and the second shunt 507 are respectively led out with wires, and the wires are connected to corresponding pins of the sensor socket 506 through the first sensor framework 504 and the inner cavity of the mounting nut 505. The diameters of the first shunt 502 and the second shunt 507 are slightly smaller than the diameter of a circle surrounded by 2N measuring test pieces 503; the second shunt 507 and the mounting nut 505 are sealed, filled and fixed by using epoxy resin, the filling diameter is as large as the diameter of a circle where the 2N measuring test pieces 503 are located, and the second shunt 507 is packaged in the second shunt 507, so that the second shunt 507 is not exposed outside; similarly, the first shunt 502 is also encapsulated between the bottom encapsulation pad 501 and the end of the measurement test piece 503 by using epoxy resin, so that the first shunt 502 is not exposed to the outside.
In this embodiment, 2N measurement test strips 503 are numbered and sorted by natural numbers, all the odd numbered test strips are a group a, the even numbered test strips are a group B (as shown in fig. 7), one end of the group a test strips is connected to the first shunt 502, and one end of the group B test strips is connected to the second shunt 507; the first shunt 502 and the second shunt 507 are respectively led out with wires, and the wires are connected to corresponding pins of the sensor socket 506 through the first sensor framework 504 and the inner cavity of the mounting nut 505.
After all parts of the microbial corrosion monitoring sensor 5 are assembled, the parts are encapsulated by using non-toxic and odorless epoxy resin, so that good insulation of all metal parts and internal leads is ensured; on the other hand, the acid and alkali corrosion resistance of the packaged microbial corrosion monitoring sensor is ensured.
The sensor plug 8 with the test cable 4 is plugged with the sensor socket 506, both the sensor plug and the sensor socket adopt waterproof aviation plugs, the protection grade of the sensor plug and the sensor socket reaches IP67 after the sensor plug and the sensor socket are firmly plugged, the sensor plug and the sensor socket can be used outdoors for a long time, and the on-site real-time monitoring requirement is met.
As shown in fig. 2, in this embodiment, in order to facilitate installation and maintenance of the microbial corrosion monitoring sensor, the threaded nipple 6 is welded to the pipe 7 to be measured in advance, and the mounting nut 505 of the microbial corrosion monitoring sensor 5 is connected to the threaded nipple 6. The two are connected in a sealing way by adopting the conical threads, so that the sealing performance and the safety performance are ensured to be good. The microbial corrosion monitoring sensor 5 is connected with the corrosion monitor 1 through a sensor socket 506, a sensor plug 8 and a test cable 4.
The signal conditioning module outputs an alternating-current polarization voltage signal and applies the alternating-current polarization voltage signal to a measuring test piece 503 of the microbial corrosion monitoring sensor 5; the feedback signal of the microbial corrosion monitoring sensor 5 is transmitted to the central processing unit through the signal acquisition module; the signal acquisition module is used for amplifying and converting a feedback signal of the microbial corrosion monitoring sensor 5; the communication module is used for receiving data of the central processing unit and then transmitting the corrosion measurement data to a wireless gateway or a cloud server through the wireless antenna 2 (in the embodiment, an outdoor AP high-gain 7db Rogers waterproof antenna is adopted).
The microbial corrosion monitoring sensor 5 is sealed by epoxy resin, so that the transportation, storage, maintenance and repair are convenient. The measurement strip 503 is connected to the sensor socket 506 through an internal wire. When the sensor is installed on site, the sensor socket 506 of the microbial corrosion monitoring sensor 5 is connected with the test cable 4, and the other end of the sensor socket is connected with the pipeline 7 through the threaded nipple 6.
The central processing unit is also provided with a maintenance interface which receives the encrypted data from the enterprise cloud platform so as to complete the setting of the working parameters of the instrument.
But biological corrosion monitoring sensor real-time on-line monitoring water medium microorganism number change, and then aassessment microorganism to the degree of corrosion of pipeline, estimation corrosion rate, can also evaluate the actual use effect of germicide, have design benefit, produce and make simple and convenient characteristics, on the one hand, the sensor can be real-time, on-line collection microorganism corrosion signal, on the other hand, the use of sensor has significantly reduced sample analyst's work load, has improved work efficiency.
The utility model discloses based on the microbial corrosion mechanism, be connected to the corrosion monitor with microbial corrosion monitoring sensor, to microbial corrosion monitoring sensor regularly polarize and monitor its feedback current, can monitor the overall process that the microbial film takes place, develops. And (3) monitoring microbial corrosion data in real time, and realizing the overall process tracking and early warning of the microbial corrosion state. The user can dynamically adjust the application time and dosage of the bactericide according to the microbial corrosion monitoring data, and finally the microbes are completely killed or can be controlled in a certain range, so that the water treatment cost is reduced, the operation process is optimized, and the maintenance cost is reduced. Furthermore, the utility model relates to a microbial corrosion monitor still has technical characteristics such as stronger interference killing feature, low-power consumption, real-time communication, can satisfy and use in adverse circumstances.
When in use, corrosion monitoring points are selected and a corrosion monitoring device is installed according to the actual needs of an industrial field; according to the distribution of monitoring points, the wireless gateways are arranged, so that data transmission between the corrosion monitoring device and the wireless gateways is realized, the field wiring cost is reduced, and the limitation of the number of monitoring points of a single bus is solved; the wireless gateway is connected with the data converter through a communication cable, and the data converter is connected with the data processing server through an Ethernet interface or a serial communication interface, so that the corrosion monitoring data is stored in the server; the data processing server is used as a main storage medium of the field corrosion monitoring data, and a user in the local area network can browse the stored data on the server through a browser; meanwhile, data can be transmitted remotely through the Internet.
As shown in fig. 8, a working flow chart of the corrosion monitor is shown, after the corrosion monitor is powered on and initialized, the setting of measurement parameters is performed, and after the setting of the parameters is completed, the automatic measurement flow of the microbial corrosion data is performed. After analog signals are amplified by the signal acquisition module and analog/digital conversion processing is completed by the signal conditioning module, the measured data are transmitted to the enterprise cloud platform through the communication module controlled by the central processing unit, meanwhile, the measured data are stored in the internal storage of the instrument for backup, and the data storage capacity is not lower than 9000 groups.
If the data transmission is successful, the data processing software compares the transmitted data with the early warning value, and if the transmitted data exceeds the early warning value, the risk of microbial corrosion in the metal pipeline is high, and measures need to be taken.
As shown in fig. 9, in order to polarize the feedback current curve diagram of the embodiment of the present invention, an SRB medium was prepared according to the national standard medium of sulfate-reducing bacteria (SRB), nitrogen was introduced for 2 hours, and high-temperature sterilization was performed at 121 ℃ for 20 minutes. Placing an experimental inoculation instrument in a glove box protected by nitrogen, carrying out ultraviolet sterilization for 20 minutes, inoculating strains into a pot filled with the culture medium by using a sterile needle tube according to 10 percent of inoculation amount, placing a microbial corrosion monitoring sensor in the pot and connecting a microbial corrosion monitor, and placing the pot with the microbial corrosion monitoring sensor and sealed by a sealing film in a constant-temperature water bath kettle at 37 ℃ for constant-temperature culture. The experimental period was 14 days, and a total of 58 data sets were collected. The experimental result shows that the measured microbial polarization feedback current data gradually shows a growing trend along with the accumulation of the microorganisms in the tank on the surface of the sensor until the measured microbial polarization feedback current data exceeds a preset early warning value.
Experimental result shows, adopt the utility model discloses measurement technique and hardware module have improved the accuracy, the stability of microbial corrosion monitoring early warning, can realize that microbial corrosion data measure and early warning state output, know the condition that pipeline, the inside microbial film of container grow in real time, carry out the early warning to microbial corrosion in the industrial environment in advance, the water treatment scheme is adjusted to developments, make its inside microorganism eliminate completely or controllable in certain extent, can reduce the expense of water treatment simultaneously again, reduce cost of maintenance.
Claims (8)
1. The utility model provides a pipeline microbiological corrosion monitoring early warning system which characterized in that: the online monitoring device for microbial corrosion is characterized by comprising one or more sets of microbial corrosion online monitoring devices, a data processing server or an enterprise cloud server, wherein each set of microbial corrosion online monitoring device is independently installed at a monitoring point of an industrial field, and corrosion monitoring data GPRS data transmission modules or GPRS wireless gateways acquired by the microbial corrosion online monitoring devices are uploaded to the data processing server or the enterprise cloud server appointed by a network.
2. The pipeline microbial corrosion monitoring and early warning system of claim 1, wherein: the microbial corrosion on-line monitoring device comprises a corrosion monitor, a microbial corrosion monitoring sensor and a test cable, wherein the microbial corrosion monitoring sensor is connected to a microbial sensor input interface of the corrosion monitor through the test cable, and the microbial corrosion monitoring sensor is installed at a tapered thread short section through the front end of the microbial corrosion monitoring sensor and inserted into a pipeline to be tested.
3. The pipeline microbial corrosion monitoring and early warning system of claim 2, wherein: the corrosion monitor (1) comprises a central processing unit, a signal acquisition module, a signal conditioning module, a communication module and a storage module, wherein the central processing unit is connected with the signal acquisition module through the signal conditioning module, a leading-out wire of the signal conditioning module is connected to a microbial corrosion monitoring sensor interface, and an input end of the signal acquisition module is connected with a microbial corrosion monitoring sensor.
4. The pipeline microbial corrosion monitoring and early warning system of claim 3, wherein: the signal conditioning module comprises a logic control module, a digital frequency synthesizer, an analog-to-digital converter, a first signal amplifier and a second signal amplifier.
5. The pipeline microbial corrosion monitoring and early warning system of claim 2, wherein: the microbial corrosion monitoring sensor comprises a first shunt, a second shunt, a measuring test piece and a first sensor framework, wherein the measuring test pieces are divided into two groups, the measuring test pieces of different groups are alternately and fixedly arranged on the first sensor framework, one end of each of the two groups of test pieces is respectively connected with the first shunt and the second shunt, and the first shunt and the second shunt are respectively arranged at two ends of the first sensor framework; the second shunt is connected with the sensor socket through a mounting nut.
6. The pipeline microbial corrosion monitoring and early warning system of claim 5, wherein: the first sensor framework is in a circular tube shape, and 2N grooves are uniformly distributed on the periphery of the circular tube in the axial direction; the 2N measuring test pieces are of strip structures and are fixedly arranged in the grooves outside the first sensor framework respectively.
7. The pipeline microbial corrosion monitoring and early warning system of claim 5, wherein: the mounting nut comprises a nut head and a thread section coaxially connected with the nut head, and a cavity communicated with the inside of the nut head is formed inside the thread section.
8. The pipeline microbial corrosion monitoring and early warning system of claim 5, wherein: the first shunt and the second shunt have the same structure and are uniformly distributed gear-shaped rings, and the number of teeth is N; the first shunt and the second shunt are respectively led out of a lead, and the leads are connected to corresponding pins of the sensor socket through the first sensor framework and an inner cavity of the mounting nut; a bottom packaging pad is arranged on the outer side of the first shunt and is packaged between the bottom packaging pad and the end part of the measuring test piece through epoxy resin; and the second shunt and the mounting nut are sealed, filled and fixed by using epoxy resin.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120230244.4U CN214472665U (en) | 2021-01-27 | 2021-01-27 | Pipeline microbial corrosion monitoring and early warning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120230244.4U CN214472665U (en) | 2021-01-27 | 2021-01-27 | Pipeline microbial corrosion monitoring and early warning system |
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| CN214472665U true CN214472665U (en) | 2021-10-22 |
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