Substation grounding system convenient for positioning grounding wire
By simultaneously laying a positioning device during the grounding wire wiring process, and using a signal transmitter to emit electromagnetic wave signals to locate the grounding wire, the problem of finding the grounding wire location is solved, achieving efficient and accurate positioning while meeting the standards for substation grounding wires.
Patent Information
- Application Number
- CN202423292292.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The location of substation grounding wires within the soil layer is difficult to find, and existing technologies are difficult to use and have low accuracy.
When laying the grounding wire, a positioning device is laid simultaneously. Through the insulation design of the signal transmitter and the communicating vessel, the signal transmitter emits electromagnetic wave signals to locate the grounding wire position, ensuring that the positioning device is insulated from the grounding wire and does not interfere with the normal operation of the grounding wire.
It significantly reduces the difficulty for operators to locate the grounding wire, meets the standards for substation grounding wire positioning, and does not affect the normal operation of the grounding wire.
Smart Images
Figure CN223713326U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of substation operation and maintenance, and particularly relates to a substation grounding system facilitating grounding wire positioning. BACKGROUND
[0002] The grounding wire of a substation needs to be buried under the ground during construction, and the soil layer is backfilled after the construction is completed. Since no other device can be sleeved outside the grounding wire, the position of the grounding wire buried in the soil layer is inconvenient to find after a long period of use. CONTENT OF THE UTILITY MODEL
[0003] In view of the deficiencies in the prior art, the present application provides a substation grounding system facilitating grounding wire positioning. In the embodiment of the present application, the positioning device is simultaneously laid during the laying of the grounding wire. Based on the position fixation and known information between the grounding wire and the positioning device, the operator can indirectly position the grounding wire by determining the position of the positioning device, thereby significantly reducing the difficulty of the operator in finding the position of the grounding wire. Meanwhile, the positioning device has no current passing therethrough during the non-working period, and the working of the positioning device and the grounding wire does not interfere with each other, thereby meeting the standard for the grounding of the grounding wire of the substation.
[0004] The above application purpose of the present application is achieved by the following technical scheme:
[0005] The substation grounding system facilitating grounding wire positioning comprises a soil layer, a grounding wire buried in the soil layer, and a positioning device for positioning the grounding wire.
[0006] The positioning device comprises a tubular communication device and a plurality of signal emitters sleeved outside the communication device. The communication device is powered by an external power supply, and the communication device is used to make the working current of the signal emitters conductive. When the communication device makes the working current of the signal emitters conductive, the signal emitters send signals outward.
[0007] The communication device and the plurality of signal emitters are both buried in the soil layer. The central axis of the communication device is parallel to the central axis of the part of the grounding wire buried in the soil layer. The communication device and the plurality of signal emitters both have a spacing from the grounding wire, and the communication device and the plurality of signal emitters are both insulated from the grounding wire.
[0008] Optionally, the communication device comprises a tubular insulating sleeve, the insulating sleeve is insulated from the grounding wire, the plurality of signal emitters are fixedly connected to the outside of the insulating sleeve, a conductor is movably connected in the insulating sleeve, the central axis of the conductor is parallel to the central axis of the insulating sleeve, and the communication device controls the on-off of the working current of the signal emitters by controlling the current position of the conductor in the insulating sleeve.
[0009] Optionally, the signal transmitter comprises a body, a connecting sleeve fixed on the body, and an elastic pole piece movably connected to the inside of the connecting sleeve, and the connecting sleeve is fixedly sleeved on the outside of the insulating sleeve;
[0010] The insulating sleeve is provided with a plurality of openings, and the plurality of openings on the insulating sleeve are respectively located on the inside of the plurality of connecting sleeves, one end of the elastic pole piece is electrically connected to the internal circuit of the signal transmitter, and the other end of the elastic pole piece extends into the opening;
[0011] The conductor is provided with a plurality of control zones, and the control zones are provided with contacts and insulating layers, the contacts and the insulating layers are slidably connected to the elastic pole piece, the contacts and the insulating layers are sequentially connected in the direction of the central axis of the conductor, and the conductor controls the connection relationship between the elastic pole piece and the contacts and the insulating layers by moving in the central axis of the communicating device inside the communicating device, so as to control the on-off of the working current of the signal transmitter.
[0012] Optionally, the outside surfaces of the contacts and the insulating layers are coplanar.
[0013] Optionally, the conductor arranged in the communicating device is two, and the two conductors are symmetrically distributed.
[0014] Optionally, the inside of the connecting sleeve is tightly attached to the outside of the insulating sleeve, and the opening region on the insulating sleeve is completely located in the inside region of the connecting sleeve.
[0015] Optionally, the positioning device further comprises a controller and a main switch, the controller and the main switch are signal connected, and the main switch is used for controlling the on-off between the conductor and the external power supply.
[0016] In summary, the present application has the following beneficial technical effects:
[0017] The embodiment of the present application is by synchronously laying the positioning device when laying the grounding wire, based on the position fixing and known information between the grounding wire and the positioning device, so that the operator can indirectly position the grounding wire by determining the position of the positioning device, which significantly reduces the difficulty of the operator to find the position of the grounding wire, at the same time, the positioning device has no current passing in the non-working period, the working of the positioning device and the grounding wire do not interfere with each other, which meets the standard of the grounding wire grounding of the transformer substation. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is a buried schematic diagram of an embodiment of the present application;
[0019] Figure 2 is a schematic diagram of an external power supply and a main switch of an embodiment of the present application;
[0020] Figure 3 is an assembly schematic diagram of a positioning device of an embodiment of the present application;
[0021] Figure 4is an explosion schematic diagram of the positioning device of an embodiment of the present application;
[0022] Figure 5 is a schematic diagram of the signal emitter of an embodiment of the present application.
[0023] Reference signs: 10, soil layer; 20, grounding wire; 30, positioning device;
[0024] 40, communication device; 41, insulating sleeve; 42, conductor; 43, opening; 44, control area; 45, contact; 46, insulating layer;
[0025] 50, signal emitter; 51, body; 52, connecting sleeve; 53, elastic pole piece;
[0026] 60, external power supply;
[0027] 70, general switch. DETAILED DESCRIPTION
[0028] The following will be combined with the accompanying Figure 1 - the accompanying Figure 5 The present application will be further described in detail.
[0029] In order to more clearly understand the technical solutions shown by the embodiments of the present application, first, the existing grounding wire of the substation is simply introduced.
[0030] The grounding wire of the substation needs to be buried below the ground during construction, and the soil layer is backfilled after the construction is completed. Based on the technical requirements, the outer side of the grounding wire cannot be sleeved with other conductors and devices. When the grounding wire needs to be found, it is generally necessary to excavate and find it based on the grounding wire entry point. The finding method is time-consuming;
[0031] Although the metal detector can find the grounding wire of metal material, there are many lines laid in the underground soil layer of the substation, and there are also many steel bars in the concrete foundation, which will significantly reduce the accuracy of the metal detector detection.
[0032] In order to solve the above technical problems, the present application provides a substation grounding system for conveniently positioning the grounding wire, so that the operator can quickly and accurately find the buried position of the grounding wire 20 after the construction of the substation is completed. It comprises a soil layer 10, the top of the soil layer 10 has a base surface, the soil layer 10 internally buries a grounding wire 20 and a positioning device 30 for positioning the grounding wire 20, and the main part of the grounding wire 20 and the positioning device 30 is located below the soil layer 10 of the base surface;
[0033] The positioning device 30 comprises a tubular communication device 40 and a plurality of signal transmitters 50 sleeved outside the communication device 40, the communication device 40 is powered by an external power supply 60, the communication device 40 is used for making the working current of the signal transmitter 50 conductive, the signal transmitter 50 has a signal transmitting circuit for transmitting signals, the communication device 40 is used for power supply to the signal transmitter 50, when the communication device 40 does not make the signal transmitter 50 current conductive, the communication device 40 and the plurality of signal transmitters 50 are insulated, when the communication device 40 makes the internal working current of the signal transmitter 50 conductive, the signal transmitter 50 sends signals to the outside;
[0034] The communication device 40 and the plurality of signal transmitters 50 are buried in the soil layer 10, the central axis of the communication device 40 is parallel to the central axis of the part of the grounding wire 20 buried in the soil layer 10, the communication device 40 and the plurality of signal transmitters 50 have a spacing with the grounding wire 20, and the communication device 40 and the plurality of signal transmitters 50 are insulated from the grounding wire 20.
[0035] The following will be further introduced in combination with specific use scenarios.
[0036] When the grounding wire 20 is buried in the construction of the transformer substation, the operator buries the tubular communication device 40 beside the grounding wire 20 in parallel to the grounding wire 20, and the communication device 40 has a spacing with the grounding wire 20, after the laying is completed, the operator can backfill the soil layer 10, and the backfilled soil layer 10 physically isolates the positioning device 30 from the grounding wire 20.
[0037] In the subsequent use process, when the operator needs to find the current position of the grounding wire 20, only the communication device 40 needs to be controlled to connect the plurality of signal transmitters 50, so that the internal working circuit of the plurality of signal transmitters 50 is in a conductive state, and can take power from the external power supply 60 through the connector, after the signal transmitter 50 takes power from the external power supply 60, the signal transmitter 50 transmits signals to the outside, and the operator can locate the position of the signal transmitter 50 by monitoring the wave band of the signal transmitter 50, since the positions of the grounding wire 20 and the signal transmitter 50 are known and fixed, the operator can indirectly find the exact position of the grounding wire 20 by locating the signal transmitter 50.
[0038] It can be found that in the embodiment of the application, the positioning device 30 is insulated from the grounding wire 20 and has physical isolation between them, the positioning device 30 has no current passing through in the resting stage, that is, the positioning device 30 and the grounding wire 20 do not interfere with each other, which meets the standard of the transformer substation for grounding of the grounding wire 20.
[0039] In general, the embodiment of the application is to lay the positioning device 30 synchronously when laying the grounding wire 20, based on the position fixing and known information between the grounding wire 20 and the positioning device 30, so that the operator can indirectly position the grounding wire 20 by determining the position of the positioning device 30, which significantly reduces the difficulty of the operator to find the position of the grounding wire 20. At the same time, the positioning device 30 has no current passing through during the non-working period, and the positioning device 30 and the grounding wire 20 do not interfere with each other during work, which meets the standard of the grounding wire 20 of the substation.
[0040] It should be understood that the signal transmitter 50 functions to emit electromagnetic wave signals outward in the energized state, and the signal transmitter 50 itself does not have a power supply function, and relies on the power supply of the communication device 40. Therefore, the signal transmitter 50 does not affect the normal work of the grounding wire 20 during the non-working period, and the work of the signal transmitter 50 is only to emit electromagnetic wave signals, which only requires a low voltage and current to meet the work requirements of the signal transmitter 50, and does not affect the normal work of the grounding wire 20.
[0041] The movement of the conductor 42 inside the insulating sleeve 41 can be manually controlled by the operator or driven by a rotating motor, a telescopic motor, or a servo cylinder. The manual control method can be to dig an operation well at the end of the insulating sleeve 41 away from the grounding wire 20 to expose the insulating sleeve 41 and the conductor 42 to the operator for manual control. The telescopic motor, or the servo cylinder. The driving method is the same as the foregoing method, and of course, the rotating motor, telescopic motor, or servo cylinder can be arranged in the chamber inside the layer, and the driving device is powered by external power supply. It should be understood that in the embodiment of the application, the conductor 42 has flexibility, its shape can be adjusted, and it can maintain its relative shape when subjected to pressure. In summary, no matter which driving method is used, as long as the conductor 42 can move inside the insulating sleeve 41 and the movement of the conductor 42 can control the on-off of the working current inside the signal transmitter 50.
[0042] The communication device 40 is used to control the on-off of the working current of the signal transmitter 50. In some possible implementation manners of the embodiment, the communication device 40 comprises a tubular insulating sleeve 41 which is insulated from the grounding wire 20, the outer side of the insulating sleeve 41 is in direct contact with the soil layer 10, a plurality of signal transmitters 50 are fixedly connected to the outer side of the insulating sleeve 41, that is, the relative position of the signal transmitter 50 and the insulating sleeve 41 is unchanged, a conductor 42 is movably connected inside the insulating sleeve 41, the central axis of the conductor 42 is parallel to the central axis of the insulating sleeve 41, the communication device 40 controls the on-off of the working current inside the signal transmitter 50 by controlling the current position of the conductor 42 inside the insulating sleeve 41, the relative position of the conductor 42 inside the insulating sleeve 41 is changed by the movement of the conductor 42, and the on-off of the working current inside the signal transmitter 50 is controlled by the change of the relative position of the conductor 42 inside the insulating sleeve 41.
[0043] Specifically, the signal transmitter 50 in the embodiment comprises a body 51, a connecting sleeve 52 fixed on the body 51, and an elastic pole piece 53 movably connected inside the connecting sleeve 52, the electrical elements and the transmitting and control circuit of the signal transmitter 50 are integrated inside the body 51, the elastic pole piece 53 is used to connect the working current power supply end inside the signal transmitter 50, and the connecting sleeve 52 is fixedly sleeved on the outer side of the insulating sleeve 41.
[0044] A plurality of openings 43 are formed on the insulating sleeve 41, the number of the openings 43 on the insulating sleeve 41 is equal to the number of the signal transmitters 50, and the plurality of openings 43 on the insulating sleeve 41 are respectively located inside the plurality of connecting sleeves 52, one end of the elastic pole piece 53 is electrically connected to the internal circuit of the signal transmitter 50, and the other end of the elastic pole piece 53 extends into the opening 43.
[0045] The conductor 42 has a plurality of control zones 44, the control zone 44 is provided with a contact 45 and an insulating layer 46, the contact 45 is electrically connected to the body of the conductor 42, the contact 45 and the insulating layer 46 are both in sliding connection with the elastic pole piece 53, the contact 45 and the insulating layer 46 are sequentially connected in the central axis direction of the conductor 42, the conductor 42 controls the connection relationship between the elastic pole piece 53, the contact 45 and the insulating layer 46 by moving in the central axis direction of the communication device 40 inside the communication device 40, so as to control the on-off of the working current of the signal transmitter 50, the conductor 42 can be powered by an external power supply 60, and the movement mode of the conductor 42 is as described above. When the conductor 42 moves inside the insulating sleeve 41, the control zone 44 on the conductor 42 will move synchronously, and the operator can control the movement of the conductor 42 to realize the connection relationship between the elastic pole piece 53, the contact 45 and the insulating layer 46.
[0046] In the embodiment of the present application, the outer side surface of the contact 45 and the insulating layer 46 are coplanar, so that the elastic pole 53 can smoothly run along the conductor 42 in the control area 44 when the conductor 42 is moving. It should be understood that, in the embodiment of the present application, the working voltage of the signal transmitter 50 is low, and the connecting sleeve 52 is closely attached to the insulating sleeve 41, the inner side of the connecting sleeve 52 is closely attached to the outer side of the insulating sleeve 41, and the opening 43 area on the insulating sleeve 41 is completely in the inner side area of the connecting sleeve 52. Even if sparking occurs between the elastic pole 53 and the contact 45 of the conductor 42, it will not affect the normal operation of the grounding wire 20.
[0047] In the embodiment of the present application, the conductor 42 arranged in the communication device 40 has two, and the two conductors 42 are symmetrically distributed. The two symmetrically distributed conductors 42 are insulated from each other, and the insulation between the two conductors 42 can be achieved by arranging the insulating layer 46 between the two conductors 42. Correspondingly, the elastic pole 53 in the same signal transmitter 50 also has two, and the two elastic poles 53 are respectively in sliding connection with the two conductors 42, thereby forming a signal transmitter 50 internal working current forming path.
[0048] In the embodiment of the present application, the positioning device 30 further comprises a controller and a total switch 70, and the controller and the total switch 70 are signal connected. The total switch 70 is used to control the on-off of the conductor 42 and the external power supply 60. The operator controls the opening and closing of the total switch 70 through the controller, thereby controlling the current on-off of the conductor 42.
[0049] The embodiments of the specific implementation are the preferred embodiments of the present application, but do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.
Claims
1. A substation grounding system with convenient grounding wire positioning, characterized in that, It includes a soil layer (10), a grounding wire (20) is buried inside the soil layer (10), and a positioning device (30) for positioning the grounding wire (20). The positioning device (30) includes a tubular connector (40) and a number of signal transmitters (50) sleeved on the outside of the connector (40). The connector (40) is powered by an external power supply (60). The connector (40) is used to conduct the working current of the signal transmitters (50). When the connector (40) conducts the working current inside the signal transmitters (50), the signal transmitters (50) send signals outward. The communicating vessel (40) and several signal transmitters (50) are buried in the soil layer (10). The central axis of the communicating vessel (40) is parallel to the central axis of the part of the grounding wire (20) buried in the soil layer (10). There is a gap between the communicating vessel (40) and several signal transmitters (50) and the grounding wire (20). The communicating vessel (40) and several signal transmitters (50) are insulated from the grounding wire (20).
2. The substation grounding system for conveniently locating grounding wires according to claim 1, characterized in that, The communicating vessel (40) includes a tubular insulating sleeve (41), which is insulated from the grounding wire (20). Several signal transmitters (50) are fixedly connected to the outside of the insulating sleeve (41). A conductor (42) is movably connected inside the insulating sleeve (41). The central axis of the conductor (42) is parallel to the central axis of the insulating sleeve (41). The communicating vessel (40) controls the on / off of the working current inside the signal transmitters (50) by controlling the current position of the conductor (42) inside the insulating sleeve (41).
3. A substation grounding system for conveniently locating grounding wires according to claim 2, characterized in that, The signal transmitter (50) includes a body (51), a connecting sleeve (52) fixed on the body (51), and an elastic pole piece (53) movably connected to the inside of the connecting sleeve (52). The connecting sleeve (52) is fixedly sleeved on the outside of the insulating sleeve (41). The insulating sleeve (41) has several openings (43), and the openings (43) on the insulating sleeve (41) are located inside several connecting sleeves (52). One end of the elastic electrode (53) is electrically connected to the circuit inside the signal transmitter (50), and the other end of the elastic electrode (53) extends into the opening (43). The conductor (42) has several control areas (44), and the control areas (44) are provided with contacts (45) and insulating layers (46). The contacts (45) and insulating layers (46) are slidably connected to the elastic pole pieces (53). The contacts (45) and insulating layers (46) are sequentially connected along the central axis of the conductor (42). The conductor (42) controls the connection relationship between the elastic pole pieces (53) and the contacts (45) and insulating layers (46) by moving along the central axis of the communicating vessel (40) inside the communicating vessel (40), thereby controlling the on and off of the working current of the signal transmitter (50).
4. A substation grounding system for conveniently locating grounding wires according to claim 3, characterized in that, The outer surfaces of the contact (45) and the insulating layer (46) are coplanar.
5. A substation grounding system for conveniently positioning grounding wires according to claim 4, characterized in that, There are two conductors (42) inside the communicating vessel (40), and the two conductors (42) are symmetrically distributed.
6. A substation grounding system for conveniently positioning grounding wires according to claim 5, characterized in that, The inner side of the connecting sleeve (52) is tightly fitted to the outer side of the insulating sleeve (41), and the opening (43) area on the insulating sleeve (41) is completely within the inner area of the connecting sleeve (52).
7. A substation grounding system for conveniently locating grounding wires according to claim 6, characterized in that, The positioning device (30) also includes a controller and a main switch (70), which are signal connected. The main switch (70) is used to control the connection and disconnection between the conductor (42) and the external power supply (60).