CN110794219A - Intelligent grounding resistance monitoring control instrument for lightning protection engineering and monitoring method - Google Patents
Intelligent grounding resistance monitoring control instrument for lightning protection engineering and monitoring method Download PDFInfo
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- CN110794219A CN110794219A CN201910980036.3A CN201910980036A CN110794219A CN 110794219 A CN110794219 A CN 110794219A CN 201910980036 A CN201910980036 A CN 201910980036A CN 110794219 A CN110794219 A CN 110794219A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/20—Measuring earth resistance; Measuring contact resistance, e.g. of earth connections, e.g. plates
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/048—Monitoring; Safety
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Abstract
The invention provides an intelligent grounding resistance monitoring controller for lightning protection engineering, which comprises a control unit, a power supply unit, a detection unit and a resistance reduction unit, wherein the power supply unit is connected with an external power supply system, the detection unit is embedded in the ground grid to detect the resistance in the ground grid, and provides the detected resistance data to a control unit, the resistance reducing unit is arranged close to the detection unit, the control unit is used for receiving the real-time resistance information provided by the detection unit, and processes the resistance information, sends control information to the resistance reducing unit according to the processing result, the invention aims to solve the problem that the ground resistance detection in the prior art can only monitor the current situation that self-repairing can not be carried out, and the ground resistance can be intelligently repaired and maintained on the basis of real-time monitoring.
Description
Technical Field
The invention relates to the technical field of lightning protection engineering, in particular to an intelligent grounding resistance monitoring controller and a monitoring method for the lightning protection engineering.
Background
In the prior art, two ways are adopted, firstly, an ion grounding rod is buried underground, electrolyte is pre-installed inside the ion grounding rod and is always connected with the underground, and the electrolyte in the ion grounding rod slowly and uninterruptedly leaks to the underground, and in the way, the problem is that the resistance value of a ground resistor is lower immediately after construction is finished and under the condition that the electrolyte in the ion grounding rod is not used completely, but after long-time use, the internal electrolyte cannot be supplemented after use, and in the way, the electrolyte continuously leaks to the underground, and is unnecessary when the ground resistor just after construction is finished or just after watering is small, so that the electrolyte is wasted, and secondly, a layer of powdery resistance reducing agent is pre-embedded underground to fill gaps between ground soil particles and increase the contact area between the ground and the grounding electrode, the resistance is reduced, and the problem of the mode is that the powder is washed or diluted to a position deeper below the ground surface in the rainy day or after external watering, and the distance between the powder and the grounding electrode is far, so that the resistance reducing effect cannot be realized.
In the invention, the ground resistance, namely the contact area between the grounding electrode and the ground, is automatically monitored in real time through the detection unit, and then the control is carried out at any time according to the monitoring result.
Disclosure of Invention
It is necessary to provide an intelligent ground resistance monitoring controller for lightning protection engineering.
An intelligent grounding resistance monitoring control method for lightning protection engineering is also necessarily provided.
The utility model provides a lightning protection engineering is with intelligent ground resistance monitor control appearance, includes the control unit, reaches the electrical unit, the detecting element who is connected with the control unit, falls the resistance unit, the electrical unit is connected with external power supply system, for the control unit provides the power with other units, and the detecting element buries underground in the earth mat to resistance to detecting in the earth mat, and provide the resistance data who detects to the control unit, it is close to the detecting element setting to fall the resistance unit, and the control unit is used for receiving the real-time resistance information that the detecting element provided, and right resistance information handles, sends control information to falling the resistance unit according to the processing result, falls the resistance unit for soil supply and falls the resistance agent with control, reduces soil resistance.
Preferably, the resistance reducing unit is disposed close to the detection unit, the resistance reducing unit includes a first resistance reducing agent container and a second resistance reducing agent container, the first resistance reducing agent container and the second resistance reducing agent container are disposed on a side wall of the detection unit, the first resistance reducing agent container and the second resistance reducing agent container have accommodating cavities for accommodating the resistance reducing agents, a first electromagnetic unit is disposed at the bottom of the first resistance reducing agent container, a second electromagnetic unit is disposed at the bottom of the second resistance reducing agent container, and the first electromagnetic unit and the second electromagnetic unit are both connected to the control unit.
Preferably, the friction reducer contained in the first friction reducer container is an electrolytic ionic filler, and the friction reducer contained in the second friction reducer container is water.
Preferably, the intelligent ground resistance monitoring controller further comprises a wireless communication unit, a timing unit and a counting unit, wherein the wireless communication unit, the timing unit and the counting unit are connected with the control unit, the counting unit is used for counting the resistance reduction times of the resistance reduction unit and providing counting information to the control unit, the timing unit is used for recording the single resistance reduction time of the resistance reduction unit and providing the resistance reduction time to the control unit, and the control unit sends the counting information of the resistance reduction times, the resistance reduction time and implementation resistance information detected by the detection unit to the background cloud server through the wireless communication unit.
Preferably, the intelligent ground resistance monitoring controller further comprises an alarm unit, the alarm unit is connected with the control unit, and the control unit sends alarm information to the alarm unit according to the processing result.
Preferably, the power supply unit provides 12V dc power for the control unit and other units.
Preferably, the intelligent grounding resistance monitoring controller further comprises a time delay device, and the time delay device is connected between the control unit and the second electromagnetic unit of the second resistance reducing agent container.
An intelligent grounding resistance monitoring control method for lightning protection engineering comprises the following steps:
detecting the resistance of the earth screen by using a detection unit, and providing the detected real-time resistance information to a control unit;
and processing the received real-time resistance information by using the control unit, and sending control information to the resistance reducing unit according to a processing result so as to control the resistance reducing unit to supply the resistance reducing agent for the soil, thereby keeping the soil resistance within a required range.
Preferably, when the control unit processes the real-time resistance information, a resistance threshold value is prestored in the control unit, the real-time resistance information is compared with the threshold value, when the real-time resistance information is greater than the resistance threshold value, the control unit sends a starting signal to the resistance reducing unit, and when the first electromagnetic unit and the second electromagnetic unit of the resistance reducing unit are started, the first resistance reducing agent and the second resistance reducing agent flow into soil to reduce resistance of the ground; after the resistance is reduced for a period of time, when the real-time resistance information detected by the detection unit is smaller than the resistance threshold value, the control unit sends a closing signal to the resistance reduction unit, the first electromagnetic unit and the second electromagnetic unit of the resistance reduction unit are closed, and the resistance reduction on the ground is stopped.
Preferably, after the control unit processes the resistance information, if the control unit determines that the obtained resistance information is greater than the resistance threshold, the control unit sends first opening information and second opening information to the first electromagnetic unit and the second electromagnetic unit respectively, and the first electromagnetic unit and the second electromagnetic unit receive the first opening information and the second opening information in sequence, so that the action time of the second electromagnetic unit lags behind the action time of the first electromagnetic unit, and the first resistance reducing agent permeates into the soil first, and the second resistance reducing agent permeates into the soil second.
The invention aims to solve the problem that the ground resistance detection in the prior art can only monitor the current situation that self-repairing can not be carried out, so that the ground resistance of a monitoring point can be intelligently repaired and maintained on the basis of real-time monitoring.
Drawings
Fig. 1 is a schematic diagram of a module of an intelligent ground resistance monitoring controller for lightning protection engineering.
Fig. 2 is an installation schematic diagram of the intelligent ground resistance monitoring controller for lightning protection engineering.
In the figure: the device comprises a control unit 10, a time delay 11, a power supply unit 20, a detection unit 30, a resistance reducing unit 40, a first resistance reducing agent container 41, a first electromagnetic unit 42, a second resistance reducing agent container 43, a second electromagnetic unit 44, a wireless communication unit 50, a timing unit 60, a counting unit 70, an alarm unit 80 and a grounding electrode 100.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1 and 2, an embodiment of the present invention provides an intelligent ground resistance monitoring controller for a lightning protection project, including a control unit 10, a power supply unit 20 connected to the control unit 10, a detection unit 30, and a resistance reduction unit 40, where the power supply unit 20 is connected to an external power supply system to provide power to the control unit 10 and other units, the detection unit 30 is embedded in a ground grid to detect resistance in the ground grid and provide detected resistance data to the control unit 10, the resistance reduction unit 40 is disposed near the detection unit 30, the control unit 10 is configured to receive real-time resistance information provided by the detection unit 30, process the resistance information, and send control information to the resistance reduction unit 40 according to a processing result to control the resistance reduction unit 40 to supply resistance reduction agents to soil and reduce soil resistance.
The change condition of the grounding resistance can be monitored in real time for 24 hours in all weather by using the intelligent ground fault monitoring device, and when the grounding resistance exceeds a standard limit value, an alarm can be given and the resistance of an overproof grounding electrode can be automatically reduced. The potential safety hazard caused by the over-standard of the grounding resistor during routine monitoring is avoided.
Further, the resistance reducing unit 40 is disposed close to the detection unit 30, the resistance reducing unit 40 includes a first resistance reducing agent container 41 and a second resistance reducing agent container 43, the first resistance reducing agent container 41 and the second resistance reducing agent container 43 are disposed on a side wall of the detection unit 30, the first resistance reducing agent container 41 and the second resistance reducing agent container 43 have accommodating cavities for accommodating the resistance reducing agents, a first electromagnetic unit 42 is disposed at a bottom of the first resistance reducing agent container 41, a second electromagnetic unit 44 is disposed at a bottom of the second resistance reducing agent container 43, and both the first electromagnetic unit 42 and the second electromagnetic unit 44 are connected to the control unit 10.
Further, the friction reducer contained in the first friction reducer container 41 is an electrolytic ion filler, and the friction reducer contained in the second friction reducer container 43 is water.
Further, the intelligent ground resistance monitoring controller further includes a wireless communication unit 50, a timing unit 60, and a counting unit 70, where the wireless communication unit 50, the timing unit 60, and the counting unit 70 are all connected to the control unit 10, the counting unit 70 (which may be a counter) is configured to count the resistance reduction times of the resistance reduction unit 40 and provide counting information to the control unit 10, the timing unit 60 is configured to record the single resistance reduction time of the resistance reduction unit 40 and provide the resistance reduction time to the control unit 10, and the control unit 10 sends the above-mentioned resistance reduction times counting information, the resistance reduction time, and implementation resistance information detected by the detection unit 30 to the background cloud server through the wireless communication unit 50 by the wireless communication unit 50.
Further, the intelligent ground resistance monitoring controller further comprises an alarm unit 80, the alarm unit 80 is connected with the control unit 10, and the control unit 10 sends alarm information to the alarm unit 80 according to the processing result.
Further, the power supply unit 20 supplies 12V dc power to the control unit and other units.
Further, the intelligent ground resistance monitoring controller further comprises a time delay 11, and the time delay 11 is connected between the control unit 10 and the second electromagnetic unit 44 of the second resistance reducing agent container 43.
The invention also provides an intelligent grounding resistance monitoring control method for the lightning protection engineering, which comprises the following steps:
detecting the resistance of the earth screen by using the detection unit 30, and providing the detected real-time resistance information to the control unit 10;
the control unit 10 is used for processing the received real-time resistance information, and sending control information to the resistance reducing unit 40 according to the processing result so as to control the resistance reducing unit 40 to supply the resistance reducing agent for the soil, thereby keeping the soil resistance in a required range.
Further, when the control unit 10 processes the real-time resistance information, a resistance threshold value is prestored in the control unit 10, the real-time resistance information is compared with the threshold value, when the real-time resistance information is greater than the resistance threshold value, the control unit 10 sends a starting signal to the resistance reducing unit 40, the first electromagnetic unit 42 and the second electromagnetic unit 44 of the resistance reducing unit 40 are started, and the first resistance reducing agent and the second resistance reducing agent flow into soil to reduce resistance of the ground; after the resistance is reduced for a period of time, when the real-time resistance information detected by the detection unit 30 is smaller than the resistance threshold, the control unit 10 sends a closing signal to the resistance reduction unit 40, and the first electromagnetic unit 42 and the second electromagnetic unit 44 of the resistance reduction unit 40 are closed to stop the resistance reduction to the ground.
Further, after the control unit 10 processes the resistance information, and determines that the resistance information is greater than the resistance threshold, the control unit 10 sends first start information and second start information to the first electromagnetic unit 42 and the second electromagnetic unit 44, respectively, and the first electromagnetic unit 42 and the second electromagnetic unit 44 receive the first start information and the second start information in sequence, so that the action time of the second electromagnetic unit 44 lags behind the action time of the first electromagnetic unit 42, and the first resistance reducing agent permeates into the soil first, and the second resistance reducing agent permeates into the soil second.
For example, a time delay 11 is arranged inside the control unit 10, the control unit 10 sends first opening information and second opening information to the first electromagnetic unit 42 and the time delay 11 at the same time, the first electromagnetic unit 42 is opened to permeate the first friction reducer into the soil, the second opening information is sent to the time delay 11, after the time delay of 20s by the time delay 11, the second opening information is sent to the second electromagnetic unit 44 to open the second friction reducer container 43 to permeate the second friction reducer into the soil.
In this embodiment, the time for opening the second resistance reducing agent is set to lag behind the time for opening the first resistance reducing agent, so that the following effects can be achieved: firstly, the first resistance reducing agent is infiltrated into the soil to reduce the resistance of the soil for the first time, then the second resistance reducing agent is infiltrated into the soil to reduce the resistance for the second time, moreover, the fluidity and the solubility of the first resistance reducing agent are lower than those of the second resistance reducing agent, when the first resistance reducing agent permeates into soil, the soil and the first resistance reducing agent are diluted, dissolved and washed after 20s by utilizing the second resistance reducing agent with better fluidity, the diffusion speed is accelerated, the enlargement area is enlarged, the resistance reducing agent is added to the soil by a two-step method, the fluidity is poor, but the resistance reducing agent with stronger resistance reducing capability is added with a second resistance reducing agent with good popularity and dilution scouring function, therefore, the contact sufficiency of the first and second resistance reducing agents and the soil is increased, the contact area is increased, and the effect of reducing the resistance of the soil around the detection unit 30 is achieved.
The detection unit 30 herein may be connected according to a loop detection method. As shown in the drawing, the ground electrode 100 is incorporated into the soil, and the sensing unit 30 is bound or mounted on the side wall of the ground electrode 100 to be buried in the soil near the ground electrode 100.
The modules or units in the device of the embodiment of the invention can be combined, divided and deleted according to actual needs.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. The utility model provides a lightning protection engineering is with intelligent ground resistance monitor control appearance which characterized in that: including the control unit, reach power supply unit, the detecting element who is connected with the control unit, fall and hinder the unit, power supply unit is connected with external power supply system, for the control unit provides the power with other units, and the detecting element buries underground in the earth mat to resistance to in the earth mat detects, and provides the resistance data who detects to the control unit, fall and hinder the unit and be close to the detecting element setting, the control unit is used for receiving the real-time resistance information that the detecting element provided, and right resistance information handles, sends control information to falling and hinders the unit according to the processing result, falls to hinder the unit for soil supply and falls the resistance agent in order to control to fall and hinders the unit, reduces soil resistance.
2. The intelligent ground resistance monitoring controller for lightning protection engineering according to claim 1, characterized in that: the resistance reducing unit is close to the detection unit and comprises a first resistance reducing agent container and a second resistance reducing agent container, the first resistance reducing agent container and the second resistance reducing agent container are arranged on the side wall of the detection unit, the first resistance reducing agent container and the second resistance reducing agent container are provided with accommodating cavities for accommodating the resistance reducing agents, a first electromagnetic unit is arranged at the bottom of the first resistance reducing agent container, a second electromagnetic unit is arranged at the bottom of the second resistance reducing agent container, and the first electromagnetic unit and the second electromagnetic unit are both connected with the control unit.
3. The intelligent ground resistance monitoring controller for lightning protection engineering according to claim 2, characterized in that: the friction reducer contained in the first friction reducer container is an electrolytic ion filler, and the friction reducer contained in the second friction reducer container is water.
4. The intelligent ground resistance monitoring controller for lightning protection engineering according to claim 2, characterized in that: the intelligent grounding resistance monitoring controller further comprises a wireless communication unit, a timing unit, a counting unit, the wireless communication unit, the timing unit, the counting unit is connected with the control unit, the counting unit is used for counting the resistance reduction times of the resistance reduction unit and providing counting information to the control unit, the timing unit is used for recording the single resistance reduction time of the resistance reduction unit and providing the resistance reduction time to the control unit, the control unit sends the above resistance reduction times counting information, the resistance reduction time and implementation resistance information detected by the detection unit to the background cloud server through the wireless communication unit.
5. The intelligent ground resistance monitoring controller for lightning protection engineering according to claim 1, characterized in that: the intelligent grounding resistance monitoring controller also comprises an alarm unit, the alarm unit is connected with the control unit, and the control unit sends alarm information to the alarm unit according to the processing result.
6. The intelligent ground resistance monitoring controller for lightning protection engineering according to claim 1, characterized in that: the power supply unit provides 12V direct current power supply for the control unit and other units.
7. The intelligent ground resistance monitoring controller for lightning protection engineering according to claim 2, characterized in that: the intelligent grounding resistance monitoring controller also comprises a time delay device, and the time delay device is connected between the control unit and the second electromagnetic unit of the second resistance reducing agent container.
8. An intelligent grounding resistance monitoring control method for lightning protection engineering is characterized by comprising the following steps:
detecting the resistance of the earth screen by using a detection unit, and providing the detected real-time resistance information to a control unit;
and processing the received real-time resistance information by using the control unit, and sending control information to the resistance reducing unit according to a processing result so as to control the resistance reducing unit to supply the resistance reducing agent for the soil, thereby keeping the soil resistance within a required range.
9. The intelligent ground resistance monitoring and controlling method for lightning protection engineering according to claim 8, characterized in that: when the control unit processes the real-time resistance information, a resistance threshold value is prestored in the control unit, the real-time resistance information is compared with the threshold value, when the real-time resistance information is larger than the resistance threshold value, the control unit sends a starting signal to the resistance reducing unit, the first electromagnetic unit and the second electromagnetic unit of the resistance reducing unit are started, and the first resistance reducing agent and the second resistance reducing agent flow into soil to reduce the resistance of the ground; after the resistance is reduced for a period of time, when the real-time resistance information detected by the detection unit is smaller than the resistance threshold value, the control unit sends a closing signal to the resistance reduction unit, the first electromagnetic unit and the second electromagnetic unit of the resistance reduction unit are closed, and the resistance reduction on the ground is stopped.
10. The intelligent ground resistance monitoring and controlling method for lightning protection engineering according to claim 8, characterized in that: after the control unit processes the resistance information, the control unit judges that the obtained resistance information is larger than the resistance threshold value, the control unit respectively sends first opening information and second opening information to the first electromagnetic unit and the second electromagnetic unit, and the first electromagnetic unit and the second electromagnetic unit sequentially receive the first opening information and the second opening information so that the action time of the second electromagnetic unit lags behind the action time of the first electromagnetic unit, and the first resistance reducing agent firstly permeates into the soil and the second resistance reducing agent secondly permeates into the soil are realized.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910980036.3A CN110794219A (en) | 2019-10-15 | 2019-10-15 | Intelligent grounding resistance monitoring control instrument for lightning protection engineering and monitoring method |
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| CN201910980036.3A CN110794219A (en) | 2019-10-15 | 2019-10-15 | Intelligent grounding resistance monitoring control instrument for lightning protection engineering and monitoring method |
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