CN116428258A - Removable active wireless temperature measuring nut and temperature monitoring system thereof - Google Patents
Removable active wireless temperature measuring nut and temperature monitoring system thereof Download PDFInfo
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- CN116428258A CN116428258A CN202310216969.1A CN202310216969A CN116428258A CN 116428258 A CN116428258 A CN 116428258A CN 202310216969 A CN202310216969 A CN 202310216969A CN 116428258 A CN116428258 A CN 116428258A
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- temperature
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 20
- 229910052751 metal Inorganic materials 0.000 claims abstract description 60
- 239000002184 metal Substances 0.000 claims abstract description 60
- 238000004891 communication Methods 0.000 claims abstract description 10
- 238000004458 analytical method Methods 0.000 claims description 8
- 238000009529 body temperature measurement Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/14—Cap nuts; Nut caps or bolt caps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention relates to a detachable active wireless temperature measuring nut which comprises a metal shell, a metal base, a temperature sensor, a main control circuit board and a battery, wherein the metal base, the temperature sensor, the main control circuit board and the battery are arranged in the metal shell, an internal thread matched with a bolt is arranged at one end of an opening of the metal shell, the metal base is arranged in the metal shell and is close to the internal thread, a through hole is formed in the metal base, the temperature sensor is embedded in the through hole, the main control circuit board and the battery are fixed on the metal base through a bracket, the temperature sensor collects temperature signals and sends the temperature signals to the main control circuit board, and the main control circuit board converts the temperature signals into electric signals and then sends the electric signals out in a radio frequency communication mode through the metal shell. The invention also relates to a temperature monitoring system which comprises an active wireless temperature measuring nut, a relay unit and a background management system. The invention has simple structure, convenient maintenance and disassembly, strong anti-interference performance and high detection precision, and can monitor and alarm the temperature of the bolts on the power line and the equipment in real time.
Description
Technical Field
The invention relates to the technical field of power transmission and distribution line overhaul, in particular to a detachable active wireless temperature measuring nut for fixing bolts on power lines and equipment and a system thereof.
Background
The intelligent power grid business is rapidly developed, the sensing monitoring technology is widely applied in the field of electric power overhaul, on-line fault analysis and early warning are carried out on power transmission and distribution lines, timely fault investigation is carried out, safe and reliable operation of an electric power system is guaranteed, and the intelligent power grid business is an important target of intelligent business. The power equipment in the power grid operates under the working conditions of high current and high load, joints of the equipment are exposed in the air, and the oxidation of metal and the influence of environmental factors such as dust and greasy dirt in the air increase the resistance of the connecting part, raise the temperature, shorten the service life, and cause burnout when severe, so that the whole power system is in fault, therefore, the temperature monitoring of the joints of the equipment and the power line is indispensable. The existing power grid equipment temperature monitoring mode is to install a temperature acquisition device on power equipment, so that the temperature acquisition device and the equipment are required to be fixed together through a certain fixed support or other fixing modes, and the installation process is time-consuming and labor-consuming. For the deployed power grid, when a new temperature monitoring point position is needed or a fault temperature monitoring point position is maintained, the problems of complicated upgrading and transformation process and difficult maintenance exist.
The prior art discloses a fastener with a temperature acquisition function, a temperature acquisition device is arranged on a bolt, and the bolt has various inconveniences in application, such as new or maintained old temperature measuring bolts, and the old bolts must be released firstly, namely, the original fixed connection mode is released, the new bolt with the temperature acquisition function is replaced, the whole maintenance process is required to be disassembled and reinstalled, the operation is complex, and moreover, the bolt is installed at the connection position of a power line, and the power failure of the power grid is caused, so that the power utilization experience of a user is greatly influenced.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a detachable active wireless temperature measuring nut which has the advantages of simple structure, convenient maintenance and disassembly, high detection precision and strong anti-interference performance.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the utility model provides a removable active wireless temperature measurement nut, includes as radio frequency signal antenna's metal casing and locates metal base, temperature sensor, main control circuit board and the battery in the metal casing, metal casing one end opening, the other end is sealed, is provided with the internal thread with bolt assorted in open-ended one end, metal base locates in the metal casing and immediately adjacent the internal thread, offer a through-hole on the metal base, temperature sensor embedding in the through-hole, main control circuit board and battery are all fixed on the metal base through the support, the battery is main control circuit board and temperature sensor power supply, temperature sensor gathers temperature signal and sends to main control circuit board, after the main control circuit board converts temperature signal into the signal, through the metal casing is with radio frequency communication's mode with the signal transmission away.
More preferably, the periphery of the metal base is provided with a waterproof ring, and the metal base is in sealing fit with the inner wall of the metal shell through the waterproof ring.
More preferably, the active wireless temperature measuring nut further comprises an acousto-optic alarm module which is embedded in the closed end of the metal shell, and the acousto-optic alarm module is electrically connected with the main control circuit board.
More preferably, insulating sheets are arranged between the metal base and the main control circuit board and between the main control circuit board and the battery.
More preferably, the measuring range of the temperature sensor is-55 ℃ to 180 ℃, and the measuring precision is +/-0.5 ℃ within the temperature range of-10 ℃ to 85 ℃.
More preferably, the battery is a button battery.
The invention also provides a temperature monitoring system, which realizes real-time on-line monitoring of the temperature of the bolts on the line and equipment, and gives an alarm to related staff in time when the temperature is abnormal, thereby ensuring the normal operation of the whole power system.
The technical proposal is as follows:
the utility model provides a temperature monitoring system includes a removable active wireless temperature measurement nut, relay unit and backstage management system, active wireless temperature measurement nut installs on the bolt of monitoring point, and its temperature of gathering the bolt to transmit to nearby relay unit through radio frequency circuit after with temperature signal processing, relay unit gathers data after transmitting to backstage management system through communication network, backstage management system carries out operation trend analysis and alarm analysis to the data of gathering, distributes different grades of alarm information according to preset distribution rule.
The invention has the following beneficial effects:
1. the detachable active wireless temperature measuring nut is simple in structure, low in cost and high in temperature detection precision;
2. according to the detachable active wireless temperature measuring nut, the metal base is internally provided with the screw thread, the original bolt is not required to be disassembled during installation, the nut is screwed into the bolt and is tightly attached to the stud on the bolt, and the detachable active wireless temperature measuring nut is directly used, is firm and reliable, has a good temperature measuring effect, is simple to install and is convenient to use;
3. the detachable active wireless temperature measuring nut is convenient and quick to replace by unscrewing the nut when the nut needs to be replaced;
4. the temperature monitoring system provided by the invention has the advantages that the temperature during the operation of the circuit and the equipment is monitored on line in real time, and a good monitoring and early warning effect is achieved, so that the transition from passive inspection to active maintenance and intelligent inspection is realized, the system has very important significance on the safe and reliable operation of the circuit and the equipment, and the normal operation of a power distribution system is ensured.
Drawings
FIG. 1 is a schematic diagram of a removable active wireless temperature sensing nut according to the present invention;
FIG. 2 is a partial cross-sectional view of a removable active wireless temperature nut;
FIG. 3 is a schematic view showing a removable active wireless temperature nut in use;
FIG. 4 is a system block diagram of a temperature monitoring system according to the present invention.
Reference numerals illustrate:
1. a metal housing; 11. an internal thread; 2. a metal base; 3. a temperature sensor; 4. a main control circuit board; 5. a battery; 6. an acousto-optic alarm module; 7. and (5) a bolt.
Description of the embodiments
The invention is described in further detail below with reference to the attached drawings and specific examples:
referring to fig. 1 to 3, a removable active wireless temperature measuring nut comprises a metal shell 1 serving as a radio frequency signal antenna, a metal base 2, a temperature sensor 3, a main control circuit board 4 and a battery 5, wherein the metal base 2, the temperature sensor 3, the main control circuit board 4 and the battery 5 are arranged in the metal shell 1, one end of the metal shell 1 is opened, the other end of the metal shell is closed, an internal thread 11 matched with a bolt 7 is arranged at one end of the opening, the metal base 2 is arranged in the metal shell 1 and is close to the internal thread 11, a through hole is formed in the metal base 2, the temperature sensor 3 is embedded in the through hole, the main control circuit board 4 and the battery 5 are all fixed on the metal base 2 through brackets (not shown), the battery 5 supplies power for the main control circuit board 4 and the temperature sensor 3, the temperature sensor 3 collects a temperature signal and sends the temperature signal to the main control circuit board 4, and after the main control circuit board 4 converts the temperature signal into an electric signal, the electric signal is transmitted in a radio frequency communication mode through the metal shell 1. The active wireless temperature measuring nut further comprises an audible and visual alarm module 6 which is embedded in the closed end of the metal shell 1, wherein the audible and visual alarm module 6 is electrically connected with the main control circuit board 4, and can perform audible and visual alarm when the temperature is abnormal.
More preferably, a waterproof ring (not shown) is arranged on the periphery of the metal base 2, and the metal base 2 is in sealing fit with the inner wall of the metal shell 1 through the waterproof ring, so that a waterproof function is realized, and liquid erosion and damage to devices in the shell are prevented. Insulating sheets (not shown) are arranged between the metal base 2 and the main control circuit board 4 and between the main control circuit board 4 and the battery 5, so that mutual conduction among devices is prevented. The metal base 2 and the metal shell 1 can be made of aluminum alloy materials.
More preferably, the temperature sensor 3 can be an embedded double-row flat pin-free SMD package, has low power consumption, high precision, small volume and high performance, the measurement range is-55 ℃ to 180 ℃, the measurement precision is +/-0.5 ℃ within the temperature range of-10 ℃ to 85 ℃, and for example, the signal can be AHT20. The temperature sensor is closely attached to the stud of the bolt 7 and senses the temperature of the bolt 7, so that the temperature acquisition is more accurate.
The battery 5 is a button battery, can be fixed on the bracket by adopting a buckle type design, is easy to replace, can be replaced once, and can be used for more than 5 years.
In order to achieve more ideal temperature measurement effect, heat-conducting silica gel can be smeared in the temperature measurement nut for installation.
The invention relates to a detachable active wireless temperature measuring nut, which adopts the working principle that: the temperature measuring nut is screwed into the bolt 7, and the temperature measuring nut is tightly contacted with the bolt 7 through the temperature sensor, so that the real-time temperature detection is carried out on the bolt 7. The bolt 7 is arranged on a point position needing temperature monitoring on a power line or power equipment, a main control circuit board in a temperature measuring nut converts a temperature signal into a digital signal, the temperature digital signal is sent to a nearby relay unit in a radio frequency communication mode, and the remote transmission of the temperature digital signal is realized by the relay unit. The relay unit can collect temperature data of the temperature measuring nuts and then remotely transmit the temperature data to the background management system. When the temperature of the bolt 7 exceeds a preset safety temperature value, the main control circuit board can also control the audible and visual alarm module to carry out on-site alarm.
The detachable active wireless temperature measuring nut has the advantages of simple structure, dust prevention, water prevention, interference resistance and good oxidation resistance. In the process of installation and disassembly, the original bolts 7 are not required to be disassembled, the bolts 7 can be screwed in for direct use, the normal operation of a power grid is not affected, and meanwhile, the temperature of the point where the bolts 7 are located is monitored in real time and data are transmitted outwards through the temperature of the collected bolts 7, so that the normal operation of the power grid is protected.
Examples
Referring to fig. 1 to 4, the present invention further provides a temperature monitoring system, which includes a temperature measuring nut, a relay unit and a background management system according to the first embodiment, wherein the active wireless temperature measuring nut is used as a data acquisition terminal of the temperature measuring nut system, is installed on a bolt 7 of a monitoring point, such as a power line or a bolt 7 of a power device, acquires the temperature of the bolt 7, processes a temperature signal, and transmits the temperature signal to a nearby relay unit through a radio frequency circuit, the relay unit acquires data and then transmits the data to the background management system through a communication network, and the background management system performs operation trend analysis and alarm analysis on the acquired data and distributes alarm information of different grades according to a preset distribution rule.
According to the embodiment, the temperature of the bolt 7 on the power line and the power equipment is collected in real time through the temperature measuring nut, then the collected data is sent to a nearby relay unit in a radio frequency communication mode, the relay unit carries out remote transmission on the collected data through a communication network, after a background management system obtains the data, trend analysis is carried out through a data analysis module, whether an alarm is triggered or not is judged through an alarm module, if yes, alarm information of different grades is distributed according to a distribution rule and distributed to clients of relevant maintainers, and therefore the conversion from passive inspection to active inspection and intelligent inspection is achieved, and the normal operation of a power distribution system is ensured.
The foregoing description is only specific embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the present invention and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present invention.
Claims (7)
1. The utility model provides a removable active wireless temperature measurement nut which characterized in that: including as radio frequency signal antenna's metal casing and locate metal base, temperature sensor, main control circuit board and the battery in the metal casing, metal casing one end opening, the other end is sealed, is provided with in open-ended one end with bolt assorted internal thread, the metal base is located in the metal casing and immediately adjacent the internal thread, set up a through-hole on the metal base, temperature sensor imbeds in the through-hole, main control circuit board and battery are all fixed through the support on the metal base, the battery is main control circuit board and temperature sensor power supply, temperature sensor gathers temperature signal and sends to main control circuit board, after the main control circuit board converts the temperature signal into the signal of telecommunication, through metal casing is with radio frequency communication's mode with the signal of telecommunication transmission.
2. The removable active wireless temperature sensing nut of claim 1, wherein: the periphery of the metal base is provided with a waterproof ring, and the metal base is in sealing fit with the inner wall of the metal shell through the waterproof ring.
3. The removable active wireless temperature sensing nut of claim 1, wherein: the sound and light alarm module is embedded in the closed end of the metal shell and is electrically connected with the main control circuit board.
4. The removable active wireless temperature sensing nut of claim 1, wherein: an insulating sheet is arranged between the metal base and the main control circuit board and between the main control circuit board and the battery.
5. The removable active wireless temperature sensing nut of claim 1, wherein: the measuring range of the temperature sensor is-55 ℃ to 180 ℃, and the measuring accuracy is +/-0.5 ℃ within the temperature range of-10 ℃ to 85 ℃.
6. The removable active wireless temperature sensing nut of claim 1, wherein: the battery is a button battery.
7. The utility model provides a temperature monitoring system, its characterized in that includes the active wireless temperature measurement nut of removable formula, relay unit and backstage management system of any of claims 1 through 6, active wireless temperature measurement nut installs on the bolt of monitoring point, and the temperature of its collection bolt to transmit to nearby relay unit through radio frequency circuit after handling temperature signal, relay unit gathers data and transmits to backstage management system through communication network after, backstage management system carries out operation trend analysis and alarm analysis to the data that gathers, distributes different grades of alarm information according to preset distribution rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310216969.1A CN116428258A (en) | 2023-03-08 | 2023-03-08 | Removable active wireless temperature measuring nut and temperature monitoring system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310216969.1A CN116428258A (en) | 2023-03-08 | 2023-03-08 | Removable active wireless temperature measuring nut and temperature monitoring system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116428258A true CN116428258A (en) | 2023-07-14 |
Family
ID=87078647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310216969.1A Pending CN116428258A (en) | 2023-03-08 | 2023-03-08 | Removable active wireless temperature measuring nut and temperature monitoring system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116428258A (en) |
-
2023
- 2023-03-08 CN CN202310216969.1A patent/CN116428258A/en active Pending
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