CN216714782U - Fan operation monitoring device - Google Patents
Fan operation monitoring device Download PDFInfo
- Publication number
- CN216714782U CN216714782U CN202123066161.5U CN202123066161U CN216714782U CN 216714782 U CN216714782 U CN 216714782U CN 202123066161 U CN202123066161 U CN 202123066161U CN 216714782 U CN216714782 U CN 216714782U
- Authority
- CN
- China
- Prior art keywords
- fan
- aerogenerator
- driven generator
- triode
- monitoring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model provides a fan operation monitoring device, includes aerogenerator, converting circuit, aerogenerator installs in the inside suction opening department in fan wind channel that awaits measuring, aerogenerator's output circuit connects converting circuit, converting circuit gives PLC input module with aerogenerator's operation or stop signal output. Compared with the prior art, the utility model has the beneficial effects that: the utility model has simple structure and convenient maintenance, and the PLC does not give an alarm when the main motor fan runs through installation and wiring; and when the fan is stopped due to failure, the PLC gives an alarm. The early warning function is achieved before the temperature of the main motor rises.
Description
Technical Field
The utility model relates to the technical field of metallurgical machinery, in particular to a fan operation monitoring device which is mainly used for on-line monitoring of a main motor cooling fan in a medium plate hot rolling production line.
Background
The main motor fan control system has single fan motor operation monitoring, but lacks monitoring means for belt breakage, fan bearing box failure, fan self failure and the like, and the design has the defects that when the three components are failed, the system cannot identify, the motor normally operates, and the fan stops operating. The original measure is to monitor the temperature and alarm after the temperature rises. This is a post-event control, which is detrimental to the operation of the motor. Based on the situation, a set of simple and effective detection system is designed and manufactured, whether the fan rotates or not can be directly detected, and whether enough air quantity exists in the cooling air duct or not can be directly detected.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a fan operation monitoring device which can detect whether a fan rotates or not and whether enough air quantity exists in a cooling air channel or not, and prevent a fan belt or a fan bearing box from being broken down to cause the temperature rise of a motor and threaten the operation of a main motor.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a fan operation monitoring device, includes aerogenerator, converting circuit, aerogenerator installs in the inside suction opening department in fan wind channel that awaits measuring, aerogenerator's output circuit connects converting circuit, converting circuit gives PLC input module with aerogenerator's operation or stop signal output.
The conversion circuit comprises a resistor R, a triode, a relay K and a voltage stabilizer, after the output voltage of the wind driven generator is stabilized by the voltage stabilizer, the positive electrode of the output voltage is connected with one end of the resistor R, the other end of the R is connected with the base electrode of the triode, the collector electrode of the triode is connected with the relay K, the relay is connected with 12V voltage, the relay sends a signal to the PLC input module, and the emitter electrode of the triode is connected with the negative electrode of the wind driven generator.
The output voltage of the wind driven generator is 8V when the wind driven generator normally operates, and the triode is cut off when the output voltage of the wind driven generator is lower than 5V.
The wind driven generator is a miniature wind driven generator.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model has simple structure and convenient maintenance, and the PLC does not give an alarm when the main motor fan runs through installation and wiring; and when the fan is stopped due to failure, the PLC gives an alarm. The early warning function is achieved before the temperature of the main motor rises.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an electrical schematic diagram of the present invention.
In the figure: 1. the wind power generator comprises a fan, a wind power generator 2 and an air suction opening 3.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Referring to fig. 1, the fan operation monitoring device comprises a wind driven generator 2 and a conversion circuit, wherein the wind driven generator 2 is installed at an air suction port 3 inside an air channel of a fan 1 to be tested, an output circuit of the wind driven generator 2 is connected with the conversion circuit, and the conversion circuit outputs an operation or stop signal of the wind driven generator 2 to a PLC input module.
As shown in fig. 2, the conversion circuit includes a resistor R, a triode, a relay K, and a voltage stabilizer, after the output voltage of the wind driven generator is stabilized by the voltage stabilizer, the positive electrode of the conversion circuit is connected to one end of the resistor R, the other end of the resistor R is connected to the base of the triode, the collector of the triode is connected to the relay K, the relay is connected to the 12V voltage, the relay sends a signal to the PLC input module, and the emitter of the triode is connected to the negative electrode of the wind driven generator.
The voltage stabilizer is a VENROCK single-power rectification board.
The output voltage of the wind driven generator 2 is 8V when the wind driven generator operates normally, and the triode is cut off when the output voltage of the wind driven generator 2 is lower than 5V.
The wind driven generator 2 is a micro wind driven generator.
The utility model is that a miniature wind-driven generator 2 is installed at the air inlet 3 in the air duct of the fan 1, when the main fan 1 runs, the wind-driven generator 2 is driven to run by generating enough wind quantity, the pulsating voltage can be measured at the output end of the wind-driven generator 2, and the direct current voltage is converted into a switching value signal by a special circuit to be sent to the PLC.
The detection system comprises an air quantity detection link, a signal conversion link and a PLC processing link.
And (3) an air quantity detection link: the link essentially needs a wind power generation device, and after field test, the wind power generation device is installed at an exhaust inlet 3 in an air duct of a host fan 1, and the air quantity generated after the fan 1 operates is enough to drive a fan of a miniature wind driven generator 2, so that a required electric signal is output.
And a signal conversion processing link: the electrical signal output by the wind turbine generator 2 is unstable and is a pulsating signal, and cannot be used by the PLC. The pulsating voltage is converted into stable direct current voltage after being processed by the conversion circuit, and the output voltage of the wind driven generator 2 is measured to be about 8V when the fan 1 normally operates. By utilizing the characteristics of the triode, a switching circuit is designed, and the switching circuit has two functions, namely signal conversion is realized, and the PLC input module is protected. When the wind driven generator 2 normally operates, the output voltage is high (about 8V), and the triode switch circuit is conducted; when the fan 1 is in failure, the air volume is low, the rotating speed of the wind driven generator 2 is reduced, the output voltage is reduced, when the voltage is as low as 5V or below, the triode is cut off, the relay K is electrified or deenergized along with the conduction and the cut-off of the triode, and the contact of the relay K is closed or opened, so that the conversion of the modulus signal and the digital quantity 1 and 0 is realized.
And (3) PLC processing link: the PLC digital quantity input module reads the switch circuit signal, processes the signal and gives an alarm prompt on an upper computer WinCC picture. The purpose of monitoring the running state of the fan is achieved.
Claims (4)
1. The utility model provides a fan operation monitoring device, its characterized in that includes aerogenerator, converting circuit, aerogenerator installs in the inside suction opening department in fan wind channel that awaits measuring, aerogenerator's output circuit connects converting circuit, converting circuit exports aerogenerator's operation or stop signal for PLC input module.
2. The fan operation monitoring device according to claim 1, wherein the switching circuit comprises a resistor R, a triode, a relay K and a voltage stabilizer, after the output voltage of the wind driven generator is stabilized by the voltage stabilizer, the positive electrode of the resistor R is connected with one end of the resistor R, the other end of the resistor R is connected with the base electrode of the triode, the collector electrode of the triode is connected with the relay K, the relay is connected with 12V voltage, the relay sends a signal to the PLC input module, and the emitter electrode of the triode is connected with the negative electrode of the wind driven generator.
3. The fan operation monitoring device according to claim 1, wherein the output voltage of the wind driven generator is 8V when the wind driven generator is in normal operation, and the triode is cut off when the output voltage of the wind driven generator is lower than 5V.
4. The wind turbine operation monitoring device of claim 1, wherein the wind turbine is a miniature wind turbine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123066161.5U CN216714782U (en) | 2021-12-08 | 2021-12-08 | Fan operation monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123066161.5U CN216714782U (en) | 2021-12-08 | 2021-12-08 | Fan operation monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216714782U true CN216714782U (en) | 2022-06-10 |
Family
ID=81883073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123066161.5U Active CN216714782U (en) | 2021-12-08 | 2021-12-08 | Fan operation monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216714782U (en) |
-
2021
- 2021-12-08 CN CN202123066161.5U patent/CN216714782U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206649082U (en) | Wind power generating set slip ring dynamic electric resistor test device | |
| CN216714782U (en) | Fan operation monitoring device | |
| CN201877806U (en) | Automatic stopping device for abnormal rotation speed of fan motor and fan | |
| CN106523297A (en) | Monitoring device of energy-saving wind generating set | |
| CN204344370U (en) | A kind of intelligent wind power detects and power-generating control system | |
| CN110701085A (en) | Fan vibration on-line monitoring and management system | |
| CN213088312U (en) | Detection device and inverter motor of ventilation blower | |
| CN213540798U (en) | Intelligent centrifugal fan controller | |
| CN209278192U (en) | A kind of ventilation blower automatic running control integrated system | |
| CN112377374A (en) | Wind generating set power characteristic detection system based on altitude | |
| CN208689743U (en) | Wireless transmission type vibration and temperature detection device | |
| CN208272614U (en) | A kind of electric motor protective device | |
| CN215734662U (en) | Prevent smoke exhaust fan monitored control system | |
| CN206992225U (en) | A kind of hydrogen fuel cell system with multilevel voltage collection | |
| CN213632427U (en) | Aerogenerator bearing temperature measurement alarm system | |
| CN217713036U (en) | Fan operation monitoring device | |
| CN110501604B (en) | Detection device and detection method for open-circuit fault of brushed direct-current fan | |
| CN219691682U (en) | Wind driven generator fault information acquisition device | |
| CN216285456U (en) | Electric quantity acquisition unit of distribution room | |
| CN219774272U (en) | Wind driven generator safety detection device with self-checking function | |
| CN218923677U (en) | Monitoring device suitable for fire pump motor | |
| CN208782281U (en) | The multifunction monitoring system of low-voltage alternating-current power distribution cabinet | |
| CN215300270U (en) | Intelligent control circuit for unattended transformer substation | |
| CN219978242U (en) | Environment monitoring instrument | |
| CN203825028U (en) | Signal conditioning circuit for magnetoelectric tachometric transducer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |