CN211924543U - Wireless ad hoc network's fan state monitoring devices - Google Patents
Wireless ad hoc network's fan state monitoring devices Download PDFInfo
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- CN211924543U CN211924543U CN202020386176.6U CN202020386176U CN211924543U CN 211924543 U CN211924543 U CN 211924543U CN 202020386176 U CN202020386176 U CN 202020386176U CN 211924543 U CN211924543 U CN 211924543U
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Abstract
The utility model provides a wireless fan state monitoring devices from network deployment. This wireless ad hoc network's fan state monitoring devices includes: the system comprises a monitoring sensor module, a microprocessor module, a fault processing module and a communication module; and the microprocessor module is respectively connected with the monitoring sensor module, the fault processing module and the communication module. The utility model provides a fan state monitoring device of wireless ad hoc network, which replaces the traditional manual inspection by a fan operation state monitoring method, and improves the operation safety of fan equipment; in consideration of the problems of large noise and more blocking in the absorption tower area and the addition and replacement of fan equipment in the later period, Zigbee ad hoc network is adopted to realize wireless transmission of the coal-fired unit power plant area.
Description
Technical Field
The utility model relates to a fan monitoring of thermal power plant's boiler, specific wireless fan state monitoring device from network deployment that says so.
Background
Along with the requirements of environment and energy-saving emission-reducing policies, a large number of fan devices are installed in the pulverized coal conveying and flue gas desulfurization system of the thermal power plant to improve the pulverized coal combustion efficiency and the flue gas desulfurization efficiency. The fan often takes place the condition of heavily loading or locked rotor at the operation in-process, causes the fan to generate heat seriously, reduces fan equipment service life, and serious can lead to fan equipment to burn out, and the production of thermal power plant boiler unit will be influenced in the maintenance of fan equipment is changed. The method can not timely and accurately eliminate potential fan faults only by means of planned maintenance of the boiler unit, and particularly, the method is difficult to timely eliminate equipment defects under the condition of sudden fan stalling. The running state of the fan equipment is monitored, the temperature and the rotating speed of the fan equipment are detected in real time, wiring is needed in consideration of transmission of detection data of the fan equipment, the engineering quantity is large, certain engineering difficulty exists, and the purpose of long-distance transmission of the running state data of the fan can be achieved by adopting a wireless networking mode.
Fan equipment in the boiler production system of thermal power plant often lacks effectual monitoring means, just can maintain the maintenance to relevant equipment when boiler planning nature is stopped production and is overhauld usually, and the problem that the fan transships and generates heat or even the stall is hardly in time discovered in daily tour of operation personnel. It is necessary to monitor fan equipment running state, nevertheless has the certain distance between running equipment and the monitor room, adopts wired transmission to need to lay wire and reform transform, can cause the secondary construction to original comprehensive pipe support and building, especially at the regional construction procedure complicacy of high-voltage power cable, must can lead to the fact the influence to the time limit for a project, increases the construction degree of difficulty, is unfavorable for the future removal and the planning of equipment or control room simultaneously.
SUMMERY OF THE UTILITY MODEL
A first object of the present invention is to provide a fan state monitoring device for wireless ad hoc network, which uses Zigbee ad hoc network to realize wireless transmission instead of wired transmission in a power plant of a coal-fired unit, and realizes the purpose of remote transmission of fan operation state data;
a second object of the utility model is to provide a wireless fan state monitoring devices from network deployment aims at solving the fan equipment in the boiler production system of thermal power plant and often lacks effectual monitoring means, just can maintain the maintenance to relevant equipment when boiler planning nature is stopped production and is overhauld usually, and the problem of stifled commentaries on classics even is extremely difficult in time to discover that the fan transships and generates heat in daily tour of operation personnel.
The utility model provides a wireless fan state monitoring devices from network deployment, include: the system comprises a monitoring sensor module, a microprocessor module, a fault processing module and a communication module; and the microprocessor module is respectively connected with the monitoring sensor module, the fault processing module and the communication module.
Wherein the monitoring sensor module comprises: a rotation speed sensor, a temperature sensor and a current sensor; and the rotating speed sensor, the temperature sensor and the current sensor are respectively connected with the microprocessor module.
Wherein the microprocessor module comprises: the alarm device comprises a microprocessor, a power supply circuit, an alarm circuit and a liquid crystal display unit; and the microprocessor is respectively connected with the power supply circuit, the alarm circuit and the liquid crystal display unit.
The microprocessor is connected with a storage battery, and the alarm circuit is arranged between the microprocessor and the storage battery.
Wherein the fault handling module comprises: a fault buzzer, a fault indicator lamp and a fan power supply relay; and the fault buzzer, the fault indicator lamp and the fan power supply relay are respectively connected with the microprocessor module.
The communication module is a radio frequency communication module; the radio frequency communication module is respectively connected with the microprocessor module and the wireless relay module, and the wireless relay module is connected with the remote monitoring center.
And the transceiver of the radio frequency communication module forms a physical layer of a Zigbee ad hoc network.
The utility model has the advantages that: this patent is wireless from fan state monitoring devices of network deployment, utilizes the monitoring of fan running state to replace the tradition manual work to patrol and examine, improves fan equipment operation security.
Consider that the regional noise of absorption tower is big, block the problem of many and later stage fan equipment increase and replacement in the actual work, the utility model discloses a wireless transmission in coal-fired unit power plant district is realized to Zigbee ad hoc network.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a fan state monitoring device of a wireless ad hoc network of the present invention;
fig. 2 is a flow chart of fig. 1.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, a wireless ad hoc network fan status monitoring device includes: the system comprises a monitoring sensor module, a microprocessor module, a fault processing module and a communication module; and the microprocessor module is respectively connected with the monitoring sensor module, the fault processing module and the communication module.
Specifically, the monitoring sensor module includes: a rotation speed sensor, a temperature sensor and a current sensor; and the rotating speed sensor, the temperature sensor and the current sensor are respectively connected with the microprocessor module.
The number of the monitoring sensor modules is two, namely the number of the rotating speed sensors, the number of the temperature sensors and the number of the current sensors are two, one group of the sensors works, the other group of the sensors is standby, and the two rotating speed sensors between the two groups of the sensors are connected in parallel, the two temperature sensors are connected in parallel, and the two current sensors are connected in parallel. After a certain sensor is damaged, the other parallel sensor can continue to work, and continuous and stable work of the monitoring sensor is guaranteed.
And sending a signal to the microprocessor after the sensor is damaged, sending the information of the sensor damage to the remote monitoring center by the microprocessor, and informing a worker to maintain the remote monitoring center.
A bistable trigger is arranged between the two parallel sensors. The two sensors work alternately through the bistable trigger.
The monitoring sensor module is composed of a plurality of monitoring sensors and used for monitoring whether data are abnormal or not under the working state of the fan.
The rotating speed sensor is an electromagnetic rotating speed sensor, is arranged on the fan and monitors the rotating speed of the fan through electromagnetic induction, and the rotating speed is not within a set value range.
The temperature sensor is a fan bearing temperature sensor, preferably a PI1000 temperature sensor. The temperature sensor monitors the temperature of the fan bearing.
The current sensor is preferably a MAX4373 type current sensor, is arranged in a loop of the fan, and monitors the change of current and voltage in the loop.
When the fan is monitored by the rotating speed sensor, the temperature sensor and the current sensor which are connected with the microprocessor module, data are sent to the microprocessor module in real time; the microprocessor module is provided with numerical value ranges of rotating speed, temperature, current and voltage of the fan for working for each sensor, and when the numerical value transmitted to the microprocessor module by the rotating speed sensor, the temperature sensor and the current sensor is not in the numerical value range set by the microprocessor module, the microprocessor module judges that the working state of the fan is abnormal.
Specifically, the microprocessor module includes: the alarm device comprises a microprocessor, a power supply circuit, an alarm circuit and a liquid crystal display unit; and the microprocessor is respectively connected with the power supply circuit, the alarm circuit and the liquid crystal display unit.
The microprocessor module is a core processor of the monitoring fan, processes the signals transmitted by the monitoring sensor module, and processes and judges the signals.
The microprocessor is preferably an MSP430 low-power consumption microprocessor and is used for monitoring conversion and operation of analog signals output by the sensor, control instruction output, fault signal coding transmission and the like.
The power supply circuit is connected with the microprocessor and supplies power to the microprocessor and other components connected with the microprocessor.
The alarm circuit is a low-voltage alarm circuit, is arranged on the power supply circuit and is used for monitoring the power supply voltage of the power supply circuit and reminding a worker to replace a battery for supplying power for the fan state monitoring device in time. The data of the alarm circuit is sent to the microprocessor.
The liquid crystal display unit is a liquid crystal display which is connected to the microprocessor through a line, and a display screen of the liquid crystal display displays signals, data and other data information which are received and processed by the microprocessor.
Specifically, the microprocessor is connected with a storage battery, and the alarm circuit is arranged between the microprocessor and the storage battery.
The storage battery is preferably a lithium battery, the storage battery is connected with the microprocessor through a power supply circuit, and an alarm circuit is arranged on the power supply circuit.
Specifically, the fault handling module includes: a fault buzzer, a fault indicator lamp and a fan power supply relay; and the fault buzzer, the fault indicator lamp and the fan power supply relay are respectively connected with the microprocessor module.
The fault processing module makes corresponding prompt and warning for the type of overheating or locked rotor fault of the fan, and breaks a circuit to avoid damage of the fan.
The fault buzzer is connected with the microprocessor, and the microprocessor gives out warning sound through the fault buzzer to remind a worker to timely discharge faults.
The fault indicator lamp is arranged on the liquid crystal display, the liquid crystal display displays a plurality of fans, each fan corresponds to the fault indicator lamp, and the corresponding fault indicator lamp is turned on when the fan breaks down to prompt a worker to maintain the fault position.
Each subassembly operating condition pilot lamp of fan is prior art, carries out the setting of circuit loop with each key position of fan, and the return circuit breaks down when breaking down, and the pilot lamp lights.
The fan power supply relay is arranged on the fan working circuit and can control the closing of the fan working circuit. The microprocessor sends a signal to the relay, and the relay is disconnected, so that the fan is prevented from being damaged due to continuous work.
Specifically, the communication module is a radio frequency communication module; the radio frequency communication module is respectively connected with the microprocessor module and the wireless relay module, and the wireless relay module is connected with the remote monitoring center.
The communication module is used for data bidirectional transmission of the microprocessor and the remote monitoring center.
The radio frequency communication module is preferably a cc2530 radio frequency communication module. The radio frequency communication module converts the data of the microprocessor into communication data and sends the communication data to the remote monitoring center through the wireless relay module.
The wireless relay module is a conventional wireless relay, the wireless relay module is a radio frequency communication module and a relay of a remote monitoring center, and the problems of signal attenuation and damage during data transmission of the radio frequency communication module and the remote monitoring center are solved.
The remote monitoring center receives the signal sent by the microprocessor and sends an instruction to the microprocessor.
Specifically, the radio frequency communication module forms a Zigbee ad hoc network.
The Zigbee ad hoc network is a conventional wireless ad hoc network of the internet of things.
And a Zigbee network consisting of cc2530 radio frequency communication modules reports fault data to a remote monitoring center, and simultaneously, the position of a fault fan is identified by a buzzer and an indicator lamp on the spot according to the type of overheating or locked rotor fault, and a microprocessor controls a power supply relay to be switched off for the locked rotor fault of the fan, so that the fan is prevented from being burnt out due to locked rotor.
The Zigbee ad hoc network is adopted to realize wireless transmission of a power plant area of the coal-fired unit, the secondary construction difficulty of the original comprehensive pipe frame and the building is reduced, and the Zigbee ad hoc network is convenient for the access and the change of later-stage equipment.
The Zigbee ad hoc network enables the working process of the fan state monitoring device to adopt different control measures aiming at different fault types of fan overheating and locked rotor, and improves the operation reliability of fan equipment.
The transceiver of the radio frequency communication module forms a physical layer modem of a Zigbee ad hoc network and is used for supporting point-to-point, star and mesh network communication specified by the radio frequency communication module.
Referring to fig. 2, the workflow includes the steps of:
1. starting; the fan state monitoring device starts working.
2. Initializing a system; the fan state monitoring device carries out self-checking.
3. Whether the communication self-check is successful or not; and if the communication self-check fails, returning to the starting state of the fan state monitoring device, and if the communication self-check succeeds, performing the next step.
4. Measuring the rotating speed, the temperature and the current; a rotating speed sensor monitors the rotating speed of the fan, a temperature sensor monitors the temperature of a fan shaft, and a current sensor monitors the working state of a fan circuit. And judging whether the fan works normally or not according to the rotating speed, the temperature and the current.
5. Whether the fan operates normally or not; if the rotating speed, the temperature and the current of the fan are normal, the fan is continuously monitored, and the sensor which is the rotating speed sensor, the temperature sensor and the current sensor is in fault is abnormally judged.
6. The temperature is high, the current is large, the rotating speed is not zero, and a buzzer and an indicator lamp identify the position of a fault fan under the condition that the fan is heated; the temperature is high, the current is large, the rotating speed is zero, the fan is blocked, a fan power supply relay on a fan circuit is tripped, the circuit is disconnected, and a buzzer and an indicator light are used for identifying the position of a fault fan.
7. The position of the fan is identified by an indicator light and gives an alarm to a remote monitoring center.
8. And (6) ending.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a wireless fan state monitoring devices from network deployment which characterized in that includes: the system comprises a monitoring sensor module, a microprocessor module, a fault processing module and a communication module; and the microprocessor module is respectively connected with the monitoring sensor module, the fault processing module and the communication module.
2. The fan status monitoring device of claim 1, wherein the monitoring sensor module comprises: a rotation speed sensor, a temperature sensor and a current sensor; and the rotating speed sensor, the temperature sensor and the current sensor are respectively connected with the microprocessor module.
3. The fan status monitoring device of claim 1, wherein the microprocessor module comprises: the alarm device comprises a microprocessor, a power supply circuit, an alarm circuit and a liquid crystal display unit; and the microprocessor is respectively connected with the power supply circuit, the alarm circuit and the liquid crystal display unit.
4. The blower condition monitoring device of the wireless ad hoc network according to claim 3, wherein the microprocessor is connected with a storage battery, and the alarm circuit is arranged between the microprocessor and the storage battery.
5. The fan state monitoring device of the wireless ad hoc network according to claim 1, wherein the fault handling module comprises: a fault buzzer, a fault indicator lamp and a fan power supply relay; and the fault buzzer, the fault indicator lamp and the fan power supply relay are respectively connected with the microprocessor module.
6. The blower fan state monitoring device of the wireless ad hoc network according to claim 1, wherein the communication module is a radio frequency communication module; the radio frequency communication module is respectively connected with the microprocessor module and the wireless relay module, and the wireless relay module is connected with the remote monitoring center.
7. The wind turbine state monitoring device of claim 6, wherein the transceiver of the radio frequency communication module forms a physical layer of a Zigbee ad hoc network.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020386176.6U CN211924543U (en) | 2020-03-24 | 2020-03-24 | Wireless ad hoc network's fan state monitoring devices |
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| CN202020386176.6U CN211924543U (en) | 2020-03-24 | 2020-03-24 | Wireless ad hoc network's fan state monitoring devices |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067889A (en) * | 2021-04-06 | 2021-07-02 | 华能铜川照金煤电有限公司 | Communication system between high-speed alarm and control system for coal conveying of power plant |
| CN113884700A (en) * | 2021-09-29 | 2022-01-04 | 华能山东石岛湾核电有限公司 | External rotating speed measuring device of helium circulator |
-
2020
- 2020-03-24 CN CN202020386176.6U patent/CN211924543U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113067889A (en) * | 2021-04-06 | 2021-07-02 | 华能铜川照金煤电有限公司 | Communication system between high-speed alarm and control system for coal conveying of power plant |
| CN113067889B (en) * | 2021-04-06 | 2022-11-15 | 华能铜川照金煤电有限公司 | Communication system between high-speed alarm and control system for coal conveying of power plant |
| CN113884700A (en) * | 2021-09-29 | 2022-01-04 | 华能山东石岛湾核电有限公司 | External rotating speed measuring device of helium circulator |
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