CN210775325U - Pipeline nondestructive testing system - Google Patents
Pipeline nondestructive testing system Download PDFInfo
- Publication number
- CN210775325U CN210775325U CN201921624221.0U CN201921624221U CN210775325U CN 210775325 U CN210775325 U CN 210775325U CN 201921624221 U CN201921624221 U CN 201921624221U CN 210775325 U CN210775325 U CN 210775325U
- Authority
- CN
- China
- Prior art keywords
- module
- pipeline
- wireless signal
- nondestructive
- inspection system
- 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.)
- Active
Links
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The utility model discloses a pipeline nondestructive test system belongs to pipeline nondestructive test technical field. The method comprises the following steps: the signal output end of the three-axis Hall sensor is connected with the wireless signal transmitter, the wireless signal receiver is connected with the input and output module in the FPGA module, and the input and output module, the singlechip and the EMMC module are sequentially connected; the three-axis Hall sensor and the wireless signal transmitter are located in the same detection unit, and the wireless signal receiver, the FPGA module, the single chip microcomputer and the EMMC module are located in the same signal processing unit. The detection unit is small in size, independent of the detection unit, and capable of detecting defects of a pipeline in a narrow or inconvenient space where the pipeline is located and ensuring reliable and stable transmission of signals.
Description
Technical Field
The utility model relates to a pipeline nondestructive test technical field especially relates to a pipeline nondestructive test system.
Background
Petroleum and natural gas are energy basic industries, and pipeline transportation is the main transportation mode of the petroleum and natural gas. Because the pipeline is buried underground, the pipeline is easy to fail due to factors such as pipes, construction quality and the like in the initial operation stage; after the pipeline is in service for a long time, the pipeline fails due to the defects of corrosion caused by external interference, soil and other surrounding environments, cracks caused by pipe fatigue and the like.
Once a failure accident occurs to a pipeline, huge losses are caused to economy, environment and safety, measures are taken to enable the pipeline to be in a controlled state, the failure accident is prevented, and a nondestructive testing technology is developed. The pipeline detection equipment based on technical principles such as magnetic leakage, ultrasound, eddy current and the like can carry out online detection on the pipeline under the condition of not influencing the daily safety production of the pipeline, accurately detect relevant information of defects such as corrosion, cracks and the like on the pipeline, and an owner can take corresponding measures according to the detection result to maintain dangerous defect points in advance.
The whole detection process consumes huge manpower and material resources, and the integrity and the effectiveness of data are very important. How to transmit and store data stably at high speed is a major key point of the internal detection device.
Chinese utility model patent, application number: CN 200620020233.9; the date of authorized announcement: 2007.04.04, respectively; relates to a nondestructive flaw detection detector for a wellhead oil pipe. The composition of the product comprises: the industrial computer, the industrial computer pass through the cable and be connected with the instrument box, the instrument box be connected with total magnetic flux probe and magnetic leakage flux probe through the detected signal line respectively, the magnetic leakage flux probe with total magnetic flux probe hookup, this product is arranged in oil well pipe or oil well pole and detects. The product has larger volume, and still has certain limitation when being expanded to the nondestructive detection of pipelines in other closed environment spaces; in addition, the product is suitable for field detection of large engineering pipelines, and is not suitable for general popularization and application for household gas pipelines, water pipes and the like in daily life or the technical problem of higher cost.
In the prior art, due to the consideration of various factors such as safety, stability and attractiveness, most pipelines are installed in hidden or narrow and other closed environments such as corners of walls, underground, underwater, bridge bottoms and the like of buildings, and the defects such as corrosion of the pipelines are further aggravated at the positions, so that the technical difficulty of detection is further aggravated, huge manpower and material resources are consumed in the whole detection process, the integrity and the effectiveness of data are critical, and how to transmit and store the data stably at high speed is a major key point of nondestructive detection equipment.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical problem, the utility model provides a pipeline nondestructive test system. The detection unit is small in size, the detection unit is independent, the pipeline defects can be detected in narrow or inconvenient operation space where the pipeline is located, and reliable and stable signal transmission is guaranteed.
In order to solve the above problem, the utility model provides a technical scheme does:
a nondestructive pipeline inspection system comprising: the signal output end of the three-axis Hall sensor is connected with the wireless signal transmitter, the wireless signal receiver is connected with the input and output module in the FPGA module, and the input and output module, the singlechip and the EMMC module are sequentially connected; the three-axis Hall sensor and the wireless signal transmitter are located in the same detection unit, and the wireless signal receiver, the FPGA module, the single chip microcomputer and the EMMC module are located in the same signal processing unit.
In the FPGA module, the input/output module and the logic module are connected by internal connecting wires.
In a further improvement, the power supply of the FPGA module is a low dropout linear regulator or a switching power supply.
The further improvement is that the single chip microcomputer is connected with the EMMC module through an RS-422 interface.
In a further improvement, the FPGA module is connected with FLASH or EEPROM.
In a further improvement, the FPGA module further includes a memory unit for storing programming data to determine the interconnection pattern between the logic modules and the input/output module.
The improved structure of the wireless signal transmitter is characterized in that the three-axis Hall sensor in the detection unit is a Hall probe, and the Hall probe is connected with the wireless signal transmitter through an IIC serial bus.
In a further improvement, the FPGA module is connected with an oscilloscope.
The further improvement is that the singlechip also comprises a watchdog clock module, and the singlechip is provided with a USB adapter.
The further improvement is that the FPGA module is connected with FLASH or EEPROM through SPI interface.
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
the detection unit is independent and only comprises two parts, namely a three-axis Hall sensor and a wireless signal transmitter, so that the size is greatly reduced, and the detection unit can adapt to the narrow and closed environmental condition of a pipeline; the wireless signal transmission mode does not need to worry about on-site wiring, so that the workload required by detection is greatly saved, the operation is convenient, and the requirements of wider application scenes can be met; high-speed, stable transmission and data storage are ensured.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
Fig. 3 is a schematic view of a partial structure of embodiment 2 of the present invention.
Fig. 4 is a schematic structural diagram of a detection unit according to embodiment 2 of the present invention.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Example 1
As shown in fig. 1, the present embodiment provides a nondestructive testing system for a pipeline, including: the signal output end of the three-axis Hall sensor is connected with the wireless signal transmitter, the wireless signal receiver is connected with the input and output module in the FPGA module, and the input and output module, the singlechip and the EMMC module are sequentially connected; the three-axis Hall sensor and the wireless signal transmitter are located in the same detection unit, and the wireless signal receiver, the FPGA module, the single chip microcomputer and the EMMC module are located in the same signal processing unit.
The signal collected by the three-axis Hall sensor is transmitted out through the wireless signal transmitter, received by the wireless signal receiver and transmitted to the FPGA module for signal caching, and the signal is further processed by the single chip microcomputer and then stored in the EMMC module; compared with the prior art, the detection unit is separated from the signal processing unit and only comprises two parts, namely the three-axis Hall sensor and the wireless signal transmitter, so that the size is greatly reduced, and the detection unit can adapt to the narrow and closed environmental condition of the pipeline; the mode of wireless signal transmission does not need to consider field wiring, thereby greatly saving the workload required by detection, being convenient for operation and meeting the requirements of wider application scenes.
It should be noted that, in the FPGA module, the input/output module and the logic module, and the logic module themselves are connected by an internal connection line. After receiving the three-axis Hall sensor, the FPGA module has high expandability through the logic modules and the wiring among the logic modules, and can meet the processing requirements of different logic rules in the signal processing process.
The power supply of the FPGA module can be a low-dropout linear voltage regulator or a switching power supply. The switching power supply has higher efficiency than the LDO, but its switching circuit increases output noise. Unlike the LDO, the switching power supply needs to use an inductor to implement DC-DC conversion, thereby increasing the size of the signal receiving unit. The low dropout regulator (LDO) can quickly respond to input voltage change and load transient, can keep the stability of the FPGA module and can reduce the output noise of the FPGA module; the space occupied by the signal receiving unit is reduced.
The single chip microcomputer is connected with the EMMC module through an RS-422 interface. The data reading speed is high, and the data is stably and reliably transmitted to the EMMC module to be stored.
The FPGA module is connected with the FLASH or the EEPROM through an SPI interface. For caching data. The EEPROM can be erased and reprogrammed on a computer or a special device. Typically for plug and play. The electrified erasable programmable read only memory. The memory chip is a memory chip with no data loss after power failure. And the data is prevented from being lost and stored in time. FLASH memory is a non-volatile memory that can hold data for a long time without current supply, and has storage characteristics equivalent to a hard disk.
The detection unit is positioned at the detected part of the pipeline. The signal processing unit is located in a space convenient for operation. The detection unit and the signal processing unit are separately arranged, and the wiring of the flat cable is further simplified due to the adoption of a wireless transmission mode, so that the operation of detection personnel is facilitated.
The FPGA module also comprises a memory unit which is used for storing programming data so as to determine the internal connection mode between the logic modules and the input/output module. The logic of the FPGA module is realized by loading programming data into the internal memory unit, the value stored in the memory unit determines the logic function of the logic module and the connection mode among the logic modules or between the logic module and the input/output module, and finally determines the function which can be realized by the FPGA module, and the FPGA module allows infinite times of programming.
And the three-axis Hall sensor in the detection unit is a Hall probe and is positioned at the detected part of the pipeline. And a three-axis Hall sensor, namely a Hall probe, is adopted to detect the signal characteristics of the leakage magnetic field from the axial direction, the radial direction and the circumferential direction, so as to analyze the detailed condition of the defect.
The FPGA module is connected with the oscilloscope. The magnetic flux waveform of the detected part of the pipeline can be conveniently displayed, and the damage degree can be visually judged.
The singlechip also comprises a WatchDog clock module, as shown in fig. 2, the WatchDog outputs a PWM waveform, the PWM waveform is input into the singlechip, and the singlechip is provided with a USB adapter. The Hall probe is connected with the wireless signal transmitter through an IIC serial bus.
Example 2
A gas supply unit entrusted to certain detection to detect gas pipelines in a certain building, adopting the technical scheme of the embodiment 1 of the application, as the length of a pipeline (in the embodiment, 7 meters are taken as an example) which can be detected once, a sensor unit containing Hall probes is arranged on the pipeline every 1 meter, as shown in a schematic diagram of a detection unit in figure 3, permanent magnets are arranged on two sides of each Hall probe respectively, a wireless signal transmitter is arranged on the 7-meter pipeline to be detected, as shown in figure 4, a field wiring diagram of the detection unit is formed, each Hall probe is connected with the wireless signal transmitter through an IIC bus, therefore, the detection unit formed by the Hall probes and the wireless signal transmitter is positioned at the part to be detected of the pipeline, and a detector places a non-signal processing unit in a space convenient to operate and is used for receiving and storing magnetic leakage signals detected by the Hall probes.
The FPGA module adopts XC65LX45T, caches data with the number of channels as much as 300 at the front end, waits for communication at the rear end, and synchronously reads the data, and the design indexes are as shown in the following table 1.
TABLE 1 FPGA Module design index
The single chip microcomputer adopts STM32H743IIK6, and communicates with the front end FPGA through the SPI interface, and the synchronous acquisition concept is realized to the buffer data of a plurality of FPGA modules of synchronous acquisition front end on reading data, and acquisition rate is far greater than the buffer rate of the front end FPGA module.
After a plurality of FPGA modules at the front end are synchronously acquired, channel information of which the number is more than 300 at the front end is packaged and stored in the EMMC module through an EMMC5.1 protocol technology.
And the RS-422 interface which is equipped independently is used for connecting the independent inertial navigation equipment and uniformly recording information acquisition into the EMMC module. The USB2.0 interface is arranged to transfer high-speed USB through a chip, and can communicate with an internal STM32 single chip microcomputer and perform a series of operations such as reading and copying on internal data of an EMMC module, and the design indexes are shown in the following table 2.
TABLE 2 SCM design index
| Parameter(s) | Design index |
| Acquisition rate | 2000Hz |
| EMMC capacity | 256GB |
| Temperature of the environment of use | -40 ℃ -85 ℃ (Industrial) |
| EMMC read rate | 330MB/s-200MB/s |
TABLE 3 EMMC Module design index
The EMMC module is established by the EMMC association and mainly aims at the standard specification of an embedded memory of products such as mobile phones or tablet computers. The latest emmc5.1 protocol technology of the three stars and the 256GB high capacity are adopted, the data collected by the internal detection equipment is stably stored for a long time, and the data integrity and the construction integrity are protected. The EMmc is communicated and data reading and writing are controlled through the STM32 single chip microcomputer, and design indexes are shown in a table 3.
The FPGA module is mainly used for collecting data of all Hall sensors outside the equipment, registering the data into a self storage space, waiting for communication with the STM32 single chip microcomputer, and then operating the data. The STM32 single chip microcomputer is mainly used for controlling the data stored in the received FPGA table 2 to be stored in the EMMC table 2, and reading and copying the data through a high-speed USB serial port. The EMMC table 2 stores data mainly used for storing equipment acquisition, and reading and copying the data after the equipment is taken out.
The units or modules described in the embodiments of the present application may be implemented by software or hardware. The described units or modules may also be provided in a processor, for example, each of the described units may be a software program provided in a computer or a mobile intelligent device, or may be a separately configured hardware device. Wherein the designation of a unit or module does not in some way constitute a limitation of the unit or module itself.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the invention herein disclosed is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the present application. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (10)
1. A nondestructive inspection system for a pipeline, comprising: the signal output end of the three-axis Hall sensor is connected with the wireless signal transmitter, the wireless signal receiver is connected with the input and output module in the FPGA module, and the input and output module, the singlechip and the EMMC module are sequentially connected; the three-axis Hall sensor and the wireless signal transmitter are located in the same detection unit, and the wireless signal receiver, the FPGA module, the single chip microcomputer and the EMMC module are located in the same signal processing unit.
2. The nondestructive pipeline inspection system of claim 1 wherein, within the FPGA module, the input output module is connected to the logic module and the logic module is connected to the logic module by internal wiring.
3. The nondestructive pipeline inspection system of claim 1, wherein the power supply of the FPGA module is a low dropout linear regulator or a switching power supply.
4. The nondestructive pipeline inspection system of claim 1, wherein the single chip microcomputer and the EMMC module are connected via an RS-422 interface.
5. The pipeline nondestructive testing system of claim 1, wherein said FPGA module is connected to FLASH or EEPROM.
6. The nondestructive pipeline inspection system of claim 1, further comprising a memory unit within said FPGA module for storing programming data to determine the interconnections between logic modules and input/output modules.
7. The nondestructive pipeline inspection system of claim 1, wherein the three-axis hall sensor in the inspection unit is a hall probe, and wherein the hall probe is connected to the wireless signal transmitter via an IIC serial bus.
8. The nondestructive pipeline inspection system of claim 1 or 5, wherein the FPGA module is connected to an oscilloscope.
9. The nondestructive pipeline inspection system of claim 4, wherein the single chip microcomputer further comprises a watchdog clock module, and the single chip microcomputer is provided with a USB adapter.
10. The pipeline nondestructive testing system of claim 5, wherein said FPGA module is connected to FLASH or EEPROM via an SPI interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921624221.0U CN210775325U (en) | 2019-09-26 | 2019-09-26 | Pipeline nondestructive testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921624221.0U CN210775325U (en) | 2019-09-26 | 2019-09-26 | Pipeline nondestructive testing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210775325U true CN210775325U (en) | 2020-06-16 |
Family
ID=71037831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921624221.0U Active CN210775325U (en) | 2019-09-26 | 2019-09-26 | Pipeline nondestructive testing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210775325U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130502A (en) * | 2020-09-24 | 2020-12-25 | 中石油西北联合管道有限责任公司 | Three-axis data acquisition system and method for pipeline magnetic flux leakage internal detector |
| CN113008975A (en) * | 2021-02-18 | 2021-06-22 | 德安福(天津)汽车技术有限公司 | Be used for new energy automobile battery pipeline performance quick detection system |
-
2019
- 2019-09-26 CN CN201921624221.0U patent/CN210775325U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112130502A (en) * | 2020-09-24 | 2020-12-25 | 中石油西北联合管道有限责任公司 | Three-axis data acquisition system and method for pipeline magnetic flux leakage internal detector |
| CN113008975A (en) * | 2021-02-18 | 2021-06-22 | 德安福(天津)汽车技术有限公司 | Be used for new energy automobile battery pipeline performance quick detection system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101260976B (en) | Pipeline leakage checking system | |
| CN210775325U (en) | Pipeline nondestructive testing system | |
| CN102495132B (en) | Multi-channel data acquisition device for submarine pipeline magnetic flux leakage internal detector | |
| CN102980036B (en) | Welding seam recognition-based pipeline leakage positioning method | |
| CN102654479B (en) | Metal pipeline corrosion defect full-digitalization three-dimensional magnetic leakage signal acquisition system | |
| CN104654026A (en) | Oil and gas pipeline leakage acoustic emission inside detection system and method | |
| CN102192953A (en) | Low-power consumption intelligent three-dimensional magnetic leakage detecting probe | |
| CN110008274A (en) | A kind of pile foundation internal force visualization automatic monitoring system based on BIM | |
| CN104088306A (en) | Wireless monitoring and early warning system for deep foundation pit comprehensive parameters | |
| CN203924149U (en) | The wireless monitor early warning system of deep foundation ditch comprehensive parameters | |
| CN111504440A (en) | Natural damage optical cable behavior monitoring system with positioning and alarming functions | |
| Panjaitan et al. | Telemonitoring temperature and humidity at bio-energy process using smart phones | |
| CN102242629A (en) | Coal bed gas pressure detection system | |
| CN210775326U (en) | Pipeline nondestructive test equipment suitable for narrow environment | |
| CN210775324U (en) | Pipeline nondestructive test core storage device | |
| CN201526809U (en) | Natural gas pipeline leakage monitoring and positioning device based on internal audition | |
| CN101819174B (en) | Device for measuring spontaneous potential of rocks | |
| CN2581950Y (en) | Intelligent apparatus for measuring and displaying water information, and metering used water quantity | |
| CN202182782U (en) | Single-line multipoint ground temperature tester of vertical pipe laying shaft | |
| CN104018883A (en) | On-line/off-line coal bed gas pressure monitoring and analyzing system | |
| CN204631960U (en) | A kind of underground coal mine electromechanical equipment logging | |
| CN113029055A (en) | Explosion-proof anti-interference pipeline wall thickness ultrasonic online monitoring device | |
| CN206207022U (en) | A kind of visualization pipeline fault alignment system based on android system | |
| CN205563570U (en) | High -speed railway station room MEP pipeline collision detection system based on BIM | |
| CN217006151U (en) | Ground temperature monitoring system for vertical buried pipe area |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |