CN210243565U - Multichannel transformer substation grounding grid corrosion detection device - Google Patents
Multichannel transformer substation grounding grid corrosion detection device Download PDFInfo
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- CN210243565U CN210243565U CN201920982180.6U CN201920982180U CN210243565U CN 210243565 U CN210243565 U CN 210243565U CN 201920982180 U CN201920982180 U CN 201920982180U CN 210243565 U CN210243565 U CN 210243565U
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Abstract
The utility model discloses a corrosion detection device for a grounding grid of a multi-channel transformer substation, wherein a magnetic field detection grid mainly comprises a plurality of magnetic field detection probes which are distributed in a grid shape, and the magnetic field detection probes are supported on a load surface through a bracket; the bracket is fixed on the outer wall of the magnetic field detection probe in a cross shape; the magnetic field detection probe mainly comprises a signal cable connecting seat, a supporting seat, a sensor mounting seat, an electric connector and a magnetic induction sensor; the signal cable connecting seat, the supporting seat and the sensor mounting seat are sequentially distributed from top to bottom; the sensor mounting seat is detachably connected with the supporting seat; the signal cable connecting seat is provided with a signal cable connecting head; the bottom of the signal cable connecting seat is fixedly connected with one end of an electric connector arranged in the supporting seat, and the other end of the electric connector is electrically connected with a magnetic induction sensor arranged in the sensor mounting seat.
Description
Technical Field
The utility model belongs to the technical field of power equipment detects, concretely relates to multichannel transformer substation's ground net corrosion detection device.
Background
The earth grid in China is generally made of flat steel and is connected with each other to form a grid shape, the earth grid is horizontally buried in the ground to a depth of about 0.3-2 meters, the spacing between the grids is usually 3-7 meters, and the proportion of the grids on two sides is usually 1: 1-1: 3. The method is characterized in that a magnetic field method-based grounding grid topological structure is detected, exciting current is injected into a grounding grid, and the distribution rule of the magnetic induction intensity on the ground surface of the grounding grid is analyzed to detect the grounding grid topological structure. Therefore, on the basis of a magnetic field method, a differential processing method for detecting the topological structure of the grounding grid of the transformer substation is researched, mutual overlapping and mutual influence of magnetic induction intensity of adjacent current-carrying conductors are weakened, and measuring environment interference is reduced, and feasibility of the method in detection of the topological structure of the grid current-carrying model is tested through a simulation example.
The corrosion condition of the grounding grid is detected by an electrochemical method, namely, the corrosion detection is performed by utilizing the characteristic that a grounding body can generate corresponding electrochemical action in the corrosion process, and the corrosion degree and the corrosion rate of the grounding body in a specific environment are determined by measuring the electrochemical characteristics of a conductor of the grounding grid and a soil corrosion system, but the technology has two difficulties: firstly, the measurement precision and the current limiting of an electrochemical sensor are problems, and the current measurement system is difficult to accurately measure electrochemical parameters under a corrosion state; secondly, the measuring environment is measured, and a plurality of strong interference signals exist in a power plant, a transformer substation and a power transmission line, and stray current existing in soil has strong interference on response signals of the electrochemical testing technology; therefore, the magnetic field differential processing method mainly carries out data processing and analysis on the magnetic field, improves the data identification degree, but when the magnetic field is measured and the grounding grid topological structure is drawn, a frame body for bearing the magnetic field detection probe needs to be built, the flexibility is not high, and the building is time-consuming.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a multichannel transformer substation's ground net corrodes detection device to the not enough of existence among the prior art.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
a corrosion detection device for a multi-channel transformer substation grounding grid comprises a magnetic field detection grid, wherein the magnetic field detection grid mainly comprises a plurality of magnetic field detection probes which are distributed in a grid shape, and the magnetic field detection probes are supported on a load surface through a support; the bracket is fixed on the outer wall of the magnetic field detection probe in a cross shape; the magnetic field detection probe mainly comprises a signal cable connecting seat, a supporting seat, a sensor mounting seat, an electric connector and a magnetic induction sensor; the signal cable connecting seat, the supporting seat and the sensor mounting seat are sequentially distributed from top to bottom; the sensor mounting seat is detachably connected with the supporting seat; the signal cable connecting seat is provided with a signal cable connecting head; the bottom of the signal cable connecting seat is fixedly connected with one end of an electric connector arranged in the supporting seat, and the other end of the electric connector is electrically connected with a magnetic induction sensor arranged in the sensor mounting seat.
The magnetic field detection network consists of a plurality of magnetic field detection probes which are distributed in a grid shape, the distribution rule of the magnetic induction intensity of the ground surface of the grounding network is analyzed by injecting exciting current into the grounding network to detect the topological structure of the grounding network, and the magnetic field intensity of each point can be better detected by the magnetic field detection probes which are distributed in the grid shape, so that the magnetic field state of the whole grounding network can be simulated, the corrosion condition of the whole grounding network is further reflected, the magnetic field detection probes are supported on a load surface by a support, the support is distributed on the outer wall of the magnetic field detection probes in a cross shape, and the support is in the cross shape, so that the plurality of supports can be conveniently positioned and referred when being placed, the placing position is ensured to be more accurate and rapid, the magnetic field detection probes comprise signal cable connecting seats, supporting seats and sensor mounting seats which are distributed from top to bottom, and signal wire connecting seats, after putting and finishing, be connected to the signal cable connecting seat with the signal cable in through the signal line connector for acquire the signal of telecommunication of sensor in the sensor mount pad, the support is fixed at the outer wall of supporting seat, and the sensor mount pad can be dismantled with the supporting seat and be connected, conveniently dismantles and changes the sensor in the sensor mount pad.
The utility model discloses explain further, be equipped with on the magnetic induction sensor and connect the pin, electric connector on seted up with connect pin complex jack, electric connector and magnetic induction sensor realize electric connection through the cooperation of being connected pin and jack. The magnetic induction sensor converts the detected magnetic signal into an electric signal and transmits the electric signal to the electric connector through the connecting pin.
The utility model discloses explain further, the top of sensor mount pad has interior cutting ferrule, the bottom of supporting seat have with the outer cutting ferrule that interior cutting ferrule size matches each other, the sensor mount pad with the connection is dismantled in the cooperation realization that the supporting seat passes through interior cutting ferrule and outer cutting ferrule. Can play the fixed effect of fine block, also convenient to detach.
The utility model discloses explain further, the inboard of outer cutting ferrule has curved protruding portion, the outside of interior cutting ferrule also has curved protruding portion. Can play the fixed effect of fine block, also convenient to detach.
The utility model discloses explain further, the support is fixed on the outer wall of supporting seat.
The utility model further discloses, the bracket mainly comprises a pointing part, a vertical extending part and a bearing part; the pointing portion, the vertical extending portion and the bearing portion are integrally formed, and the pointing portion, the vertical extending portion and the bearing portion are all made of hard plastic materials. The bracket is made of hard plastic materials, has simple and reliable structure and low price, is more favorable for batch processing and production, and has long storage period.
The utility model discloses explain further, the outside of signal line connector is equipped with presses and emits to press emit with signal line connector threaded connection. The press cap can rotate to press the pressing sheet at the outer end of the signal wire connector, so that the fixation of the signal cable installation is ensured.
The utility model discloses a theory of operation and use flow: the magnetic field detection network consists of a plurality of magnetic field detection probes which are distributed in a grid shape, the topological structure of the grounding network is detected by injecting exciting current into the grounding network and analyzing the distribution rule of the magnetic induction intensity on the surface of the grounding network, the magnetic field intensity of each point can be better detected by the magnetic field detection probes distributed in a grid shape, therefore, the magnetic field state of the whole grounding grid can be simulated, the corrosion condition of the whole grounding grid is further reflected, and the bracket is in a cross shape, so that the grounding grid is convenient to place, the positioning and reference of a plurality of brackets are carried out, the placing position is ensured to be more accurate and rapid, the signal cable is connected into the signal cable connecting seat through the signal wire connecting head, the sensor mounting seat is detachably connected with the supporting seat, and the sensor in the sensor mounting seat is conveniently detached and replaced.
The utility model discloses the beneficial effect who has as follows:
1. the utility model discloses all magnetic field test probes for monitoring all support on the bottom surface through the support, have high flexibility to the support is the cross, be favorable to putting a plurality of probe and be latticed, and can carry out suitable interval according to the actual size of ground net and put, in addition, when detecting, can select the probe of suitable number to put according to the precision grade that detects, great having made things convenient for the magnetic field detection operation to the ground net, consequently also the degree of corrosion of ground net is just further embodied.
2. The utility model discloses a light plastics material that the support adopted, simple structure is reliable, and the low price, is favorable to batch processing and production more, and the storage cycle length, and a plurality of magnetic field test probe all can be dismantled simultaneously and accomodate, can carry out the storage of high condition alone, and in addition and the transmission of the on-the-spot equipment of being convenient for and signal also very convenient between the external signal cable.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of the bracket of the present invention;
FIG. 3 is a schematic structural view of the magnetic field detecting probe of the present invention;
FIG. 4 is a schematic view of the internal structure of the magnetic field detecting probe of the present invention;
wherein, each icon and the corresponding part name are as follows:
100-a magnetic field detection network, 1-a magnetic field detection probe, 11-a signal cable connecting seat, 111-a signal wire connecting head, 12-a supporting seat, 121-an outer clamping sleeve, 13-a sensor mounting seat, 131-an inner clamping sleeve, 2-a support, 21-a pointing part, 22-a vertical extending part, 23-a bearing part, 3-an electric connector, 4-a magnetic induction sensor and 41-a connecting pin.
Detailed Description
The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings.
Example 1:
a corrosion detection device for a grounding grid of a multi-channel transformer substation comprises a magnetic field detection grid, wherein the magnetic field detection grid 100 mainly comprises a plurality of magnetic field detection probes 1 distributed in a grid shape, and the magnetic field detection probes 1 are supported on a load surface through a support 2; the bracket 2 is fixed on the outer wall of the magnetic field detection probe 1 in a cross shape; the magnetic field detection probe 1 mainly comprises a signal cable connecting seat 11, a supporting seat 12, a sensor mounting seat 13, an electric connector 3 and a magnetic induction sensor 4; the signal cable connecting seat 11, the supporting seat 12 and the sensor mounting seat 13 are sequentially distributed from top to bottom; the sensor mounting seat 13 is detachably connected with the supporting seat 12; the signal cable connecting seat 11 is provided with a signal wire connecting head 111; the bottom of the signal cable connecting seat 11 is fixedly connected with one end of an electric connector 3 arranged in the supporting seat 12, and the other end of the electric connector 3 is electrically connected with a magnetic induction sensor 4 arranged in the sensor mounting seat 13.
The bracket 2 is fixed on the outer wall of the support seat 12.
The bracket 2 mainly comprises a pointing part 21, a vertical extending part 22 and a bearing part 23; the pointing portion 21, the vertical extension portion 22 and the bearing portion 23 are integrally formed, and the pointing portion 21, the vertical extension portion 22 and the bearing portion 23 are all made of hard plastic materials.
Example 2:
this example differs from example 1 in that: be equipped with on the magnetic induction sensor 4 and connect pin 41, electric connector 3 go up seted up with connect pin 41 complex jack, electric connector 3 and magnetic induction sensor 4 realize electric connection through the cooperation of connecting pin 41 and jack.
Example 3:
this example differs from example 2 in that: the top of the sensor mounting seat 13 is provided with an inner clamping sleeve 131, the bottom of the supporting seat 12 is provided with an outer clamping sleeve 121 matched with the inner clamping sleeve 131 in size, and the sensor mounting seat 13 and the supporting seat 12 are detachably connected through the matching of the inner clamping sleeve 131 and the outer clamping sleeve 121.
Example 4:
this example differs from example 3 in that: the inner side of the outer cutting ferrule 121 has an arc-shaped protrusion, and the outer side of the inner cutting ferrule 131 also has an arc-shaped protrusion.
Example 5:
this example differs from example 4 in that: the outside of signal line connector 111 is equipped with the pressure and emits to press emit with signal line connector 111 threaded connection.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Finally, it should be pointed out that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. The utility model provides a multichannel transformer substation's ground net corrosion detection device, includes magnetic field detection net (100), its characterized in that: the magnetic field detection network (100) mainly comprises a plurality of magnetic field detection probes (1) which are distributed in a grid shape, and the magnetic field detection probes (1) are supported on a load surface through a support (2);
the bracket (2) is fixed on the outer wall of the magnetic field detection probe (1) in a cross shape;
the magnetic field detection probe (1) mainly comprises a signal cable connecting seat (11), a supporting seat (12), a sensor mounting seat (13), an electric connector (3) and a magnetic induction sensor (4); the signal cable connecting seat (11), the supporting seat (12) and the sensor mounting seat (13) are sequentially distributed from top to bottom;
the sensor mounting seat (13) is detachably connected with the supporting seat (12); the signal cable connecting seat (11) is provided with a signal wire connecting head (111); the bottom of the signal cable connecting seat (11) is fixedly connected with one end of an electric connector (3) arranged in the supporting seat (12), and the other end of the electric connector (3) is electrically connected with a magnetic induction sensor (4) arranged in the sensor mounting seat (13).
2. The multi-channel substation grounding grid corrosion detection device of claim 1, characterized in that: be equipped with on magnetic induction sensor (4) and connect pin (41), seted up on electric connector (3) with connect pin (41) complex jack, electric connector (3) and magnetic induction sensor (4) realize electric connection through the cooperation of connecting pin (41) and jack.
3. The multi-channel substation grounding grid corrosion detection device of claim 1, characterized in that: the sensor mounting seat is characterized in that an inner clamping sleeve (131) is arranged at the top of the sensor mounting seat (13), an outer clamping sleeve (121) matched with the inner clamping sleeve (131) in size is arranged at the bottom of the supporting seat (12), and the sensor mounting seat (13) and the supporting seat (12) are detachably connected through the matching of the inner clamping sleeve (131) and the outer clamping sleeve (121).
4. The multi-channel substation grounding grid corrosion detection device of claim 3, characterized in that: the inner side of the outer cutting sleeve (121) is provided with an arc-shaped protruding part, and the outer side of the inner cutting sleeve (131) is also provided with an arc-shaped protruding part.
5. The multi-channel substation grounding grid corrosion detection device of claim 1, characterized in that: the support (2) is fixed on the outer wall of the support seat (12).
6. The multi-channel substation grounding grid corrosion detection device of any one of claims 1 or 5, characterized in that: the support (2) mainly comprises a pointing part (21), a vertical extending part (22) and a bearing part (23); the pointing portion (21), the vertical extending portion (22) and the bearing portion (23) are integrally formed, and the pointing portion (21), the vertical extending portion (22) and the bearing portion (23) are all made of hard plastic materials.
7. The multi-channel substation grounding grid corrosion detection device of claim 1, characterized in that: the outside of signal line connector (111) is equipped with the cap, and the cap with signal line connector (111) threaded connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920982180.6U CN210243565U (en) | 2019-06-27 | 2019-06-27 | Multichannel transformer substation grounding grid corrosion detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920982180.6U CN210243565U (en) | 2019-06-27 | 2019-06-27 | Multichannel transformer substation grounding grid corrosion detection device |
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| Publication Number | Publication Date |
|---|---|
| CN210243565U true CN210243565U (en) | 2020-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920982180.6U Active CN210243565U (en) | 2019-06-27 | 2019-06-27 | Multichannel transformer substation grounding grid corrosion detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210243565U (en) |
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2019
- 2019-06-27 CN CN201920982180.6U patent/CN210243565U/en active Active
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