Transmitter of pipeline outer anti-corrosion layer detector
By introducing detection and cut-off modules into the transmitter of the pipeline external anti-corrosion layer detector, the problems of short detection distance and easy burn-out have been solved, achieving greater transmission power and longer detection distance. At the same time, it has the function of current backflow protection to protect the equipment safety.
Patent Information
- Application Number
- CN202423269272.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-28
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2034-12-28
AI Technical Summary
Existing pipeline external corrosion protection layer detectors have short detection ranges and are easily burned out in strong electric field environments.
A transmitter for a pipeline external anti-corrosion layer detector was designed, comprising a power module, a power amplifier module, a control module, an output module, a detection module, and a cut-off module. The detection module detects backflow of current and the cut-off module disconnects the connection to prevent backflow, increase transmission power and detection distance, and has a protection function.
It achieves greater transmission power and longer detection range, and protects the transmitter from burnout when backflow is detected.
Smart Images
Figure CN223756704U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to pipeline detection equipment technical field, especially relate to a pipeline outer anticorrosive coating detector transmitter. BACKGROUND
[0002] The outer anticorrosive coating of gas pipeline refers to a layer of material coated on the outside of the gas pipeline, which is used to protect the pipeline from corrosion. When selecting the anticorrosive coating material, factors such as the environmental conditions of the pipeline, the corrosiveness of the soil, the operating temperature and pressure of the pipeline, etc. need to be considered. In addition, the construction quality of the anticorrosive coating also directly affects its protective effect, so parameters such as surface treatment, coating thickness, and bonding strength need to be strictly controlled during the construction process. In order to ensure the long-term safe operation of the gas pipeline, it is necessary to regularly detect and maintain the anticorrosive coating.
[0003] The pipeline outer anticorrosive coating detector transmitter is also a high-power metal pipeline locator transmitter, which is used in conjunction with a pipeline anticorrosive coating detector receiver and a metal pipeline detector receiver. It can load mixed frequencies for corrosion detection and single frequencies for pipeline positioning. The transmitter in the prior art has the disadvantages of short detection distance and strong electric field near the pipeline to be detected, which can burn out the instrument. UTILITY MODEL CONTENT
[0004] In view of the above problems, the utility model aims to provide a pipeline outer anticorrosive coating detector transmitter with greater transmission power, longer detection distance, and the function of preventing current backflow. When external stray current is detected, the transmitter is protected from being burned out.
[0005] The technical solution of the utility model is as follows: a pipeline outer anticorrosive coating detector transmitter, comprising:
[0006] A power module for outputting current;
[0007] A power amplifier module connected to the power module, for amplifying the output current;
[0008] A control module connected to the power amplifier module, for controlling the amplification power of the power amplifier module;
[0009] An output module connected to the output end of the power amplifier module, comprising a grounding end and a load end, the grounding end is used for connecting to the ground near the pipeline to be detected, and the load end is used for connecting to the pipeline to be detected;
[0010] A detection module connected to the grounding end and the load end, respectively, for detecting the size of the current backflowing through the grounding end and the load end;
[0011] A cutting module is connected between the power amplifier module and the output module, and the cutting module is also connected with the detection module, so as to cut the connection between the power amplifier module and the output module when the detection module detects the reverse current.
[0012] Further, the power module is a lithium battery with a capacity of 23.5aH.
[0013] Further, the ground end is a black end, and the load end is a red end.
[0014] Further, the voltage output range of the output module is 0-100V.
[0015] The working method of the utility model is as follows: the ground end of the output module is connected to the ground near the measured pipeline, the load end is connected to the measured pipeline, before starting, the detection module detects whether there is external current flowing through the ground end or the load end, if yes, the cutting module cuts the connection between the output module and the power amplifier module, if no, the power module outputs current to the power amplifier module, the control module controls the power amplifier module to amplify the output current, and then the output module outputs current, and the external receiver receives the signal and detects, so as to realize the detection of the outer anticorrosive layer of the pipeline.
[0016] Compared with the prior art, the utility model has the advantages that: the pipeline outer anticorrosive layer detector transmitter provided by the utility model has the detection module arranged between the output module and the power amplifier module, can detect the size of the current flowing through the output module, if the size of the current exceeds the set range, the cutting module cuts the connection between the output module and the power amplifier module. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a whole structure schematic view of the utility model.
[0018] Wherein, 1, power module;2, power amplifier module;3, control module;4, output module;41, ground end;42, load end;5, detection module;6, cutting module. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings Figure 1The specific embodiments of this utility model will be described in detail below. In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0020] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0021] It should be noted that the circuit connections involved in this utility model all adopt conventional circuit connection methods and do not involve any innovation.
[0022] Example: Figure 1 As shown, a transmitter for a pipeline external anti-corrosion coating detector is characterized by comprising a power supply module 1, a power amplifier module 2, a control module 3, an output module 4, a detection module 5, and a cutoff module 6. Wherein:
[0023] Power module 1 is used to output current. Power module 1 is a rechargeable lithium battery with a capacity of 23.5AH.
[0024] Power amplifier module 2 is connected to power supply module 1, and power amplifier module 2 is used to amplify the output current;
[0025] The control module 3 is connected to the power amplifier module 2 and is used to control the amplification power of the power amplifier module 2;
[0026] Output module 4 is connected to the output terminal of power amplifier module 2. The voltage output range of output module 4 is 0-100V. Output module 4 includes a ground terminal 41 and a load terminal 42. Ground terminal 41 is used to connect to the ground near the pipe under test, and load terminal 42 is used to connect to the pipe under test. Ground terminal 41 is a black terminal and load terminal 42 is a red terminal.
[0027] The detection module 5 is connected to the grounding terminal 41 and the load terminal 42 respectively, and is used to detect the magnitude of the reverse current flowing through the grounding terminal 41 and the load terminal 42.
[0028] The cutting-off module 6 is connected between the power amplifier module 2 and the output module 4, and is also connected with the detecting module 5, so as to cut off the connection between the power amplifier module 2 and the output module 4 when the detecting module 5 detects the reverse current.
[0029] The power amplifier module 2 is CORCOM 20VR1, the control module 3 is AE1608S I, the detecting module 5 is A-DLJC1, and the cutting-off module 6 is GEMS-26M.
[0030] The working method of the above embodiment is that the grounding end 41 of the output module 4 is connected with the earth near the pipeline to be detected, and the load end 42 is connected with the pipeline to be detected, before starting, the detecting module 5 detects whether there is external current flowing through the grounding end 41 or the load end 42, if yes, the cutting-off module 6 cuts off the connection between the output module 4 and the power amplifier module 2, if not, the power supply module 1 outputs current to the power amplifier module 2, the control module 3 controls the power amplifier module 2 to amplify the output current, and then the output module 4 outputs the current, and the signal is received by the external receiver to detect the pipeline outer anticorrosive coating.
[0031] The specific models of the above electronic components can be selected from the commercially available ordinary products, as long as they can meet the use requirements of the utility model.
[0032] The above specific embodiments further specifically describe the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only for the specific embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model are included in the protection scope of the utility model.
Claims
1. A launch for an external pipe coating inspection instrument, characterized in that The utility model relates to a kind of power supply module, power amplifier module, control module and output module for the detection of pipeline. It comprises: Power module (1) for outputting current; Power amplifier module (2) connected with the power module (1), the power amplifier module (2) is used for amplifying output current; Control module (3) connected with the power amplifier module (2), for controlling the amplification power of power amplifier module (2); Output module (4) connected at the output of the power amplifier module (2), the output module (4) includes ground terminal (41) and load terminal (42), the ground terminal (41) is used for accessing the ground near the pipeline to be measured, and the load terminal (42) is used for connecting the pipeline to be measured; Detection module (5) connected with the ground terminal (41) and load terminal (42) respectively, for detecting the size of current flowing through the ground terminal (41) and load terminal (42); 2. A pipeline external coating inspection instrument transmitter as defined in claim 1, wherein, Cut-off module (6) connected between the power amplifier module (2) and the output module (4), the cut-off module (6) is also connected with the detection module (5), for cutting off the connection between the power amplifier module (2) and the output module (4) after the detection module (5) detects the reverse current.
3. A pipeline external coating inspection instrument transmitter as defined in claim 1, wherein, The power module (1) is a rechargeable lithium battery with a capacity of 23.5aH.
4. A transmitter for a pipeline external coating inspection instrument as defined in claim 1, wherein, The ground terminal (41) is a black end, and the load terminal (42) is a red end. The voltage output range of the output module (4) is 0-100V.