CN212183188U - Pump underload and overload real-time monitoring protection device based on NB-IOT - Google Patents
Pump underload and overload real-time monitoring protection device based on NB-IOT Download PDFInfo
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- CN212183188U CN212183188U CN202020905032.7U CN202020905032U CN212183188U CN 212183188 U CN212183188 U CN 212183188U CN 202020905032 U CN202020905032 U CN 202020905032U CN 212183188 U CN212183188 U CN 212183188U
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Abstract
The utility model discloses a pump underload and overload real-time monitoring protection device based on NB-IOT, including backstage management platform, magnetic drive pump protector includes host system and NB-IOT communication module, relay control module, power module, voltage detection module, current detection module, leakage current detection module, constant voltage power supply module that are connected with host system respectively; the magnetic pump protector is connected with the background management platform through the NB-IOT communication module; the magnetic pump protector is connected with the power distribution cabinet through a wiring terminal of the power distribution cabinet, and the magnetic pump protector is connected with the magnetic pump through a wiring terminal of the magnetic pump; the magnetic pump protector is connected with an external power supply through a voltage-stabilized power supply module; the utility model discloses the installation is simple, be convenient for the installation maintenance, can avoid taking place because the production that the ageing problem of pump leads to postpones or the incident.
Description
Technical Field
The utility model relates to a pump protector's research field, in particular to pump underloading and overload real-time supervision protection device based on NB-IOT.
Background
At present, most of traditional pumps are not provided with a protection system, so that the problem that the pump head burns out in an idle running mode when a water tank is lack of liquid or the problem that the pump head burns out in an overload mode can occur, and even safety accidents can occur. A few manufacturers can equip the pump with a liquid level protector, but the liquid level protector has the problem of abnormal detection results along with the change of the types of the measured liquid, and the liquid level protector is large in size, troublesome to install, messy in field wiring of the pump and inconvenient to install and maintain.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at overcomes prior art's shortcoming and not enough, provides a pump underload and overload real-time supervision protection device based on NB-IOT, and the installation is simple, the installation of being convenient for is maintained, avoids taking place because the production postponing or the incident that the ageing problem of pump leads to.
The purpose of the utility model is realized through the following technical scheme:
a pump underload and overload real-time monitoring protection device based on NB-IOT is characterized by comprising a background management platform and a magnetic pump protector, wherein the magnetic pump protector comprises a main control module, an NB-IOT communication module, a relay control module, a power supply module, a voltage detection module, a current detection module and a leakage current detection module; the main control module is respectively connected with the NB-IOT communication module, the relay control module, the power supply module, the voltage detection module, the current detection module and the leakage current detection module; the magnetic pump protector is connected with the background management platform through the NB-IOT communication module; the magnetic pump protector is connected with the power distribution cabinet through a wiring terminal of the power distribution cabinet, and the magnetic pump protector is connected with the magnetic pump through a wiring terminal of the magnetic pump; the magnetic pump protector is connected with an external power supply through a voltage-stabilized power supply module.
Furthermore, the voltage detection module comprises an A-phase voltage detection module, a B-phase voltage detection module and a C-phase voltage detection module, and each voltage detection module comprises a voltage sensor, a sampling resistor and a voltage metering chip.
Further, the voltage sensor is a current type voltage sensor, and the sampling resistor is a kiloohm-level sampling resistor.
Furthermore, the current detection module comprises an A-phase current detection module, a B-phase current detection module and a C-phase current detection module, and each current detection module comprises a current sensor, a sampling resistor and a current metering chip.
Further, the current sensor is 1000: 1 current sensor.
Further, the main control module is an MCU main control module.
Further, the MCU master control module adopts an ATT7022 metering chip.
Further, the regulated power supply module is a 450V regulated power supply module.
The utility model discloses a working process:
the utility model discloses the structure is clear, can detect real-time voltage, electric current, power, temperature etc. of pump actual work through the sensor of difference, sends information such as operating condition of pump to the backend server in real time through NB-IOT, carries out real-time status monitoring and shows.
When the following conditions occur in the pump, the pump is judged to be in failure:
1. the working current of the pump is less than or equal to the idle current of the pump;
2. the working power of the pump is less than or equal to the idle power of the pump;
3. the working temperature of the pump is higher than the critical protection temperature;
4. the working voltage of the pump has phase loss;
5. the working voltage of the pump exceeds or is lower than the protection range;
6. when the pump leaks electricity;
when 1 or more than 1 of the above 6 conditions are detected, the pump light load and overload real-time monitoring and protecting system quickly and correspondingly cuts off the relay by sending a small signal, so as to cut off the power supply of the pump, realize the protection of the pump, the response speed can reach millisecond level, and provide corresponding fault codes. When the pump runs, a user can also carry out on-off operation on the pump through the server platform or the mobile phone client.
Meanwhile, a user can observe the use condition of the pump in a recent period of time in the monitoring system, and if the performance change of the pump is found to be large, the pump can be checked and maintained in time, so that production delay or safety accidents caused by the aging problem of the pump are avoided.
Compared with the prior art, the utility model, following advantage and beneficial effect have:
the utility model discloses the installation is simple, be convenient for installation maintenance, and is small, and the wiring only need connect three-phase live wire and ground wire, and all sensors are all built-in, and very big make things convenient for the installation, can avoid taking place because the production that the ageing problem of pump leads to postpones or the incident, and its life also improves greatly.
Drawings
Fig. 1 is a block diagram of a NB-IOT based pump light load and overload real-time monitoring protection device according to the present invention;
fig. 2 is a block diagram of the protector of the magnetic pump according to the embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples and drawings, but the present invention is not limited thereto.
Example (b):
in this embodiment, it should be understood that, when the real-time monitoring protection system works normally, the main function is to accurately detect physical quantities such as voltage and current of the pump, monitor the running state of the pump in real time, and perform rapid power-off protection on abnormal conditions, the auxiliary function is to send information such as the working state of the current pump to the background through the NB-IOT communication module at regular time and regular frequency, the background can generate a report of the pump usage within a period of time, and a user can know the aging condition of the pump in time according to the report, thereby avoiding the occurrence of production delay or safety accident.
A pump underload and overload real-time monitoring protection device based on NB-IOT (NB-IOT) is shown in figure 1 and comprises a background management platform and a magnetic pump protector, wherein the magnetic pump protector is shown in figure 2 and comprises a main control module, an NB-IOT communication module, a relay control module, a power supply module, a voltage detection module, a current detection module, a leakage current detection module and a voltage stabilizing power supply module; the main control module is an MCU main control module, adopts an ATT7022 metering chip and is respectively connected with the NB-IOT communication module, the relay control module, the power supply module, the voltage detection module, the current detection module, the leakage current detection module and the voltage-stabilized power supply module; the magnetic pump protector is characterized in that the stabilized voltage power supply module is a 450V stabilized voltage power supply module and can bear the continuous working voltage of the maximum 450V, three-phase electricity firstly passes through the stabilized voltage power supply module and then can only pass through 220V when passing through the magnetic pump protector without the stabilized voltage power supply module, namely the magnetic pump protector is connected with an external power supply through the stabilized voltage power supply module; the magnetic pump protector is connected with the background management platform through the NB-IOT communication module; the magnetic pump protector is connected with the power distribution cabinet through a power distribution cabinet wiring end, and the magnetic pump protector is connected with the magnetic pump through a magnetic pump wiring end.
Furthermore, the voltage detection module comprises an A phase voltage detection module, a B phase voltage detection module and a C phase voltage detection module, and each voltage detection module comprises a voltage sensor, a sampling resistor and a voltage metering chip; the voltage sensor is a current type voltage sensor, the sampling resistor is a kiloohm-level sampling resistor, and a 110 kiloohm sampling resistor is selected here.
Furthermore, the current detection module comprises an A-phase current detection module, a B-phase current detection module and a C-phase current detection module, and each current detection module comprises a current sensor, a sampling resistor and a current metering chip; the current sensor is 1000: 1 current sensor.
The utility model discloses a working process:
the utility model discloses the structure is clear, can detect real-time voltage, electric current, power, temperature etc. of pump actual work through the sensor of difference, sends information such as operating condition of pump to the backend server in real time through NB-IOT, carries out real-time status monitoring and shows.
The working principle is as follows:
the real-time monitoring protection system detects the working voltage of the current pump through a voltage sensor, and judges that the pump works abnormally when the following conditions occur:
1. the working voltage of the pump exceeds the normal working range of the pump;
2. the working voltage of the pump is lower than the normal working range of the pump;
3. the difference between the three-phase voltages of the pump is more than 100V;
4. the three-phase voltage of the pump has phase loss of any phase;
the real-time monitoring protection system detects the working current of the current pump through a current transformer, and judges that the pump works abnormally when the following conditions occur:
1. the operating current of the pump exceeds the maximum allowable operating current of the pump;
2. the working current of the pump is lower than the idle current of the pump;
the real-time monitoring protection system detects the working temperature of the current pump through a temperature sensor, and judges that the pump works abnormally when the following conditions occur:
1. the working temperature of the pump exceeds the critical temperature protection value of the pump;
the real-time monitoring protection system detects the residual current of the current pump through the residual current transformer, and judges that the pump works abnormally when the following conditions occur:
1. the residual current of the pump exceeds the allowable range value, namely, the leakage condition occurs;
in summary, when the real-time monitoring protection system device generates an alarm, the MCU controls the relay to work immediately to cut off the zero line and the live line of the power supply, the real-time monitoring protection system device sends the corresponding alarm signal to the background server, and the background server obtains the alarm signal and sends the alarm signal to the server management platform and the mobile phone client, so as to notify the user in time that an abnormal condition occurs in the pump, so that the user can check the pump in time, thereby avoiding the problems of burning out the pump.
The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.
Claims (8)
1. A pump underload and overload real-time monitoring protection device based on NB-IOT is characterized by comprising a background management platform and a magnetic pump protector, wherein the magnetic pump protector comprises a main control module, an NB-IOT communication module, a relay control module, a power supply module, a voltage detection module, a current detection module, a leakage current detection module and a voltage stabilizing power supply module; the main control module is respectively connected with the NB-IOT communication module, the relay control module, the power supply module, the voltage detection module, the current detection module, the leakage current detection module and the voltage-stabilized power supply module; the magnetic pump protector is connected with the background management platform through the NB-IOT communication module; the magnetic pump protector is connected with the power distribution cabinet through a wiring terminal of the power distribution cabinet, and the magnetic pump protector is connected with the magnetic pump through a wiring terminal of the magnetic pump; the magnetic pump protector is connected with an external power supply through a voltage-stabilized power supply module.
2. The NB-IOT based pump light load and overload real-time monitoring protection device according to claim 1, wherein the voltage detection modules comprise an A-phase voltage detection module, a B-phase voltage detection module and a C-phase voltage detection module, and each voltage detection module comprises a voltage sensor, a sampling resistor and a voltage metering chip.
3. The NB-IOT based pump light load and overload real-time monitoring protection device as claimed in claim 2, wherein the voltage sensor is a current mode voltage sensor and the sampling resistor is a kiloohm level sampling resistor.
4. The NB-IOT based pump light load and overload real-time monitoring protection device according to claim 1, wherein the current detection module comprises a phase A current detection module, a phase B current detection module and a phase C current detection module, and each current detection module comprises a current sensor, a sampling resistor and a current metering chip.
5. The NB-IOT based pump light load and overload real-time monitoring protection device according to claim 4, wherein the current sensor is 1000: 1 current sensor.
6. The NB-IOT based pump light load and overload real-time monitoring protection device according to claim 1, wherein the master control module is an MCU master control module.
7. The NB-IOT based pump light load and overload real-time monitoring protection device according to claim 6, wherein the MCU master control module employs an ATT7022 metering chip.
8. The NB-IOT based pump light load and overload real-time monitoring protection device as claimed in claim 1, wherein the regulated power supply module is a 450V regulated power supply module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020905032.7U CN212183188U (en) | 2020-05-26 | 2020-05-26 | Pump underload and overload real-time monitoring protection device based on NB-IOT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020905032.7U CN212183188U (en) | 2020-05-26 | 2020-05-26 | Pump underload and overload real-time monitoring protection device based on NB-IOT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212183188U true CN212183188U (en) | 2020-12-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020905032.7U Active CN212183188U (en) | 2020-05-26 | 2020-05-26 | Pump underload and overload real-time monitoring protection device based on NB-IOT |
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| Country | Link |
|---|---|
| CN (1) | CN212183188U (en) |
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2020
- 2020-05-26 CN CN202020905032.7U patent/CN212183188U/en active Active
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