CN114113920A - Explosion-proof motor monitoring device - Google Patents
Explosion-proof motor monitoring device Download PDFInfo
- Publication number
- CN114113920A CN114113920A CN202010872959.XA CN202010872959A CN114113920A CN 114113920 A CN114113920 A CN 114113920A CN 202010872959 A CN202010872959 A CN 202010872959A CN 114113920 A CN114113920 A CN 114113920A
- Authority
- CN
- China
- Prior art keywords
- explosion
- sensor
- module
- monitoring
- signal
- 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.)
- Pending
Links
- 238000012806 monitoring device Methods 0.000 title claims abstract description 36
- 238000012544 monitoring process Methods 0.000 claims abstract description 96
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims description 65
- 238000006243 chemical reaction Methods 0.000 claims description 43
- 239000013307 optical fiber Substances 0.000 claims description 33
- 238000004880 explosion Methods 0.000 claims description 32
- 239000000835 fiber Substances 0.000 claims description 29
- 239000000523 sample Substances 0.000 claims description 26
- 238000004804 winding Methods 0.000 claims description 24
- 230000003287 optical effect Effects 0.000 claims description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 2
- 238000010892 electric spark Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1218—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing using optical methods; using charged particle, e.g. electron, beams or X-rays
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0063—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display using a threshold to release an alarm or displaying means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
- G01R31/343—Testing dynamo-electric machines in operation
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
Abstract
The invention discloses an explosion-proof motor monitoring device which comprises at least one sensor and a monitoring module; the monitoring module is electrically connected with the at least one sensor, so that the monitoring module monitors the explosion-proof motor through signals acquired by the at least one sensor; the at least one sensor comprises a combustible gas sensor; the one end of combustible gas sensor with the monitoring module electricity is connected, the combustible gas sensor other end is arranged in gathering the concentration of combustible gas among the explosion-proof machine and obtains the concentration signal, and will concentration signal send to monitoring module is in order to realize monitoring module is right the concentration of combustible gas monitors among the explosion-proof machine. Explosion-proof machine monitoring devices wherein the combustible gas sensor be used for right combustible gas concentration monitors among the explosion-proof machine, helps solving among the prior art can't correspond and is applied to in the combustible gas operating mode the explosion-proof machine carries out the technical problem who monitors.
Description
Technical Field
The invention relates to a monitoring device, in particular to an explosion-proof motor monitoring device.
Background
At present, various motors are widely applied to a plurality of scenes, wherein an explosion-proof motor is mainly applied to flammable and explosive scenes. The explosion-proof motor is various in types, and explosion-proof mechanisms are different. In an environment with combustible gas, the explosion-proof motor enhances the safety performance through the special structural design of the motor shell. Even if the explosion-proof motor explodes, the holding of the explosion-proof motor only occurs in the explosion-proof motor, and the operation of other surrounding equipment cannot be influenced. The early warning of explosion of the explosion-proof motor is particularly necessary, and especially, the early warning becomes more important for some users of the explosion-proof motor which can bring about great economic loss after the explosion-proof motor stops running.
The explosion-proof motor needs to be monitored for realizing the early warning function. In the prior art, the explosion-proof motor used in a combustible gas environment has not been able to realize monitoring. Therefore, research and development personnel are working on researching and developing an explosion-proof motor monitoring device for monitoring the explosion-proof motor, and the technical problem that the explosion-proof motor cannot be monitored in the working condition of combustible gas in the prior art is solved.
Disclosure of Invention
In view of the above, the present application provides an explosion-proof motor monitoring device, which includes at least one sensor and a monitoring module;
the monitoring module is electrically connected with the at least one sensor, so that the monitoring module monitors the explosion-proof motor through signals acquired by the at least one sensor;
the at least one sensor comprises a combustible gas sensor;
the one end of combustible gas sensor with the monitoring module electricity is connected, the combustible gas sensor other end is arranged in gathering the concentration of combustible gas among the explosion-proof machine and obtains the concentration signal, and will concentration signal send to monitoring module is in order to realize monitoring module is right the concentration of combustible gas monitors among the explosion-proof machine.
The utility model provides one kind in this embodiment explosion proof machine monitoring devices's concrete structure, explosion proof machine monitoring devices's wherein combustible gas sensor is used for gathering combustible gas concentration in the explosion proof machine obtains the concentration signal, then will solubility signal send to monitoring module, monitoring module then can be right explosion proof machine monitors, helps solving among the prior art can't correspond be used for the combustible gas operating mode in the technical problem that explosion proof machine monitored.
In an optional embodiment, the at least one sensor further comprises a discharge sensor, a first end of the discharge sensor is electrically connected with the monitoring module, a second end of the discharge sensor is used for acquiring a discharge state of the explosion-proof motor to obtain a discharge signal, and the discharge signal is sent to the monitoring module so that the monitoring module can monitor the discharge state in the explosion-proof motor.
In the present embodiment, a monitoring device capable of monitoring discharge in the explosion-proof motor is provided.
In an alternative embodiment, the second end of the discharge sensor is a fiber optic probe disposed in a discharge region within the explosion-proof motor.
In this embodiment, a specific implementation manner of the discharge sensor is provided, and the discharge sensor monitors the discharge area through the fiber-optic probe.
In an alternative embodiment, the fiber-optic probe extends out of a plurality of optical fibers, and the fiber-optic probes are respectively oriented at different positions of the discharge region, so that the fiber-optic probe can detect the whole range of the discharge region.
In the embodiment, a specific structure of the fiber-optic probe and how the fiber-optic probe is installed in the explosion-proof motor are provided.
In an alternative embodiment, the at least one sensor further comprises a winding temperature sensor;
one end of the winding temperature sensor is electrically connected with the monitoring module, and the other end of the winding temperature sensor is used for collecting the winding temperature of the explosion-proof motor to obtain a temperature signal and sending the temperature signal to the monitoring module so as to realize that the monitoring module monitors the winding temperature in the explosion-proof motor.
The winding temperature sensor is used for measuring the temperature of the winding in the explosion-proof motor and sending the temperature signal to the monitoring module to monitor the temperature of the winding in the explosion-proof motor.
In an optional embodiment, the monitoring module comprises a remote control center and a central processing module;
the remote control center is used for monitoring the signals acquired by the at least one sensor;
the central processing module is respectively electrically connected with the at least one sensor and the remote control center and is used for coding the signals acquired by the at least one sensor to obtain monitoring data codes and sending the monitoring data codes to the remote control center, so that the remote control center monitors the explosion-proof motor according to the monitoring data codes.
In this embodiment, a specific implementation manner of the monitoring module is provided, the monitoring module is divided into the central processing module for processing the signal, and the remote control center is configured to monitor the explosion-proof motor according to the monitoring data code.
In an optional embodiment, the central processing module comprises a signal processing unit, a multiplexer, a voltage-frequency conversion module and a fiber module;
the signal processing unit is respectively connected with the at least one sensor and is used for receiving signals acquired by the at least one sensor;
the multiplexer is electrically connected with the signal processing unit and is used for coding the signals received by the signal processing unit in an ordered electric wave form with intervals to obtain the monitoring data code;
the voltage frequency conversion module is electrically connected with the signal processing unit and is used for converting the monitoring data code into a voltage frequency signal;
one end of the optical fiber module is connected with the voltage-frequency conversion module, and the other end of the optical fiber module is connected with the remote control center, so that the voltage-frequency signal is sent to the remote control center through the module to realize monitoring of the explosion-proof motor.
The embodiment provides a specific structure of the central processing module, and the specific structure of the central processing module in the embodiment encodes a signal acquired by the at least one sensor, converts the encoded monitoring data code into the voltage frequency signal, and finally sends the voltage frequency signal to the remote control center, so that the remote control center monitors the explosion-proof motor.
In an optional embodiment, the central processing module further comprises a photoelectric conversion unit;
the photoelectric conversion unit is connected in series between the signal processing unit and the discharge sensor, and is used for converting optical signals received by the optical fiber probe into electric discharge signals and sending the electric discharge signals to the signal processing unit.
A specific structure of the photoelectric conversion unit is further provided in this embodiment. The photoelectric conversion unit converts the optical signals collected by the discharge sensor into electric signals, so that the signal processing unit only has the capacity of processing the electric signals, and the processing process of the signal processing unit is simplified.
In an optional embodiment, the central processing module further includes a fiber optic power converter and a voltage conversion module, the fiber optic power converter is connected to the fiber optic module, so that the fiber optic power converter converts external light energy into electrical energy through the fiber optic module;
the voltage conversion module is electrically connected with the optical fiber electric energy converter, and is used for supplying the electric energy to the signal processing unit and the multi-path modulator, and the voltage frequency conversion module and the optical fiber module;
the voltage conversion module is electrically connected with the optical fiber electric energy converter, and is used for supplying the electric energy to the signal processing unit and the multiplexer, and the voltage frequency conversion module and the optical fiber module.
In this embodiment, a specific structure of the central processing module is further disclosed, and the voltage conversion module and the fiber-optic power converter are used to supply power to other components in the central processing module, and can also increase the voltage levels of the other components.
In an alternative embodiment, the combustible gas sensor is an MQ-2 sensor.
In the present embodiment, a specific implementation of the combustible gas sensor is provided, that is, the combustible gas sensor is an MQ-2 sensor.
Drawings
The foregoing and other features and advantages of the invention will become more apparent to those skilled in the art to which the invention relates upon consideration of the following detailed description of a preferred embodiment of the invention with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of an explosion-proof motor monitoring device according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of an explosion-proof motor monitoring device according to another embodiment of the present application;
fig. 3 is a schematic structural diagram of the explosion-proof motor monitoring device provided with the remote control center and the central processing module in another embodiment.
Wherein the reference numbers are as follows:
| reference numerals | Means of |
| 1 | Sensor with a |
| 11 | |
| 12 | |
| 13 | |
| 121 | |
| 122 | |
| 2 | |
| 21 | |
| 22 | |
| 221 | |
| 222 | |
| 223 | Voltage |
| 224 | |
| 225 | |
| 226 | Optical fiber |
| 3 | Explosion- |
| 31 | Discharge region |
Detailed Description
The inventor finds that, in the prior art, an explosion-proof motor under a combustible gas working condition is not monitored in any way, the interior of a motor shell of the explosion-proof motor is filled with a large amount of combustible gas, the combustible gas may cause explosion of the explosion-proof motor under the condition of open fire, after the explosion of the explosion-proof motor, due to the structure of the motor shell, the explosion does not damage other equipment around the explosion-proof motor, but the explosion-proof motor needs to stop working for maintenance, so that the normal working of the explosion-proof motor is still influenced, and for some explosion-proof motors, the explosion-proof motor needs to be monitored necessarily, so that the operation of stopping the explosion-proof motor is carried out through the monitoring condition, the possibility of explosion is reduced, and the explosion is avoided as much as possible.
Fig. 1 is a schematic structural diagram of an explosion-proof motor monitoring device according to the present application in an embodiment. As shown in fig. 1, an explosion-proof machine monitoring devices is provided in this application, explosion-proof machine monitoring devices is applied to under the environment of combustible gas, explosion-proof machine monitoring devices includes at least one sensor 1, at least one sensor 1 includes combustible gas touch sensor 11, and combustible gas touch sensor 11 will be sent to monitoring module 2 with the mode of solubility signal at the combustible gas solubility that the explosion-proof machine 3 measured in, and monitoring module 2 can be according to concentration signal monitors explosion-proof machine 3, for example can with the concrete majority combustible gas concentration that concentration signal corresponds shows, and the staff can cut off explosion-proof machine 3's operation according to the numerical value that shows, perhaps sets up a threshold value automatically, works as concentration signal's numerical value exceeds the operation that explosion-proof machine 3 was then cut off to the threshold value, perhaps reports to the police etc..
In one embodiment, the present application provides an explosion proof motor monitoring apparatus comprising at least one sensor 1 and a monitoring module 2.
A monitoring module 2 in the explosion-proof motor monitoring device can display the acquisition result of the at least one sensor 1, and a worker can judge whether corresponding measures should be taken according to the display result.
The monitoring module 2 is electrically connected with at least one sensor 1, so that the monitoring module 2 monitors the explosion-proof motor through signals collected by the at least one sensor 1.
Said at least one sensor 1 comprises a combustible gas sensor 11;
one end of the combustible gas sensor 11 is electrically connected with the monitoring module 2, and the other end of the combustible gas sensor 11 is used for collecting the concentration of the combustible gas in the explosion-proof motor 3 to obtain a concentration signal, and the concentration signal is sent to the monitoring module 2 to monitor the concentration of the combustible gas in the explosion-proof motor 3 by the monitoring module 2.
The utility model provides a in this embodiment explosion proof machine monitoring devices, combustible gas sensor 11 among the explosion proof machine monitoring devices can gather the combustible gas concentration in the explosion proof machine and obtain concentration signal will concentration signal sends to in monitoring module 2, and monitoring module 2 can be based on concentration signal is right the concentration of combustible gas shows, and the staff can be based on concentration signal corresponds the concentration numerical value of combustible gas comes to carry out subsequent operation to explosion proof machine 3, for example closes explosion proof machine 3 or utilizes stand-by motor to carry out work. The monitoring module 2 can also automatically shut down the explosion-proof motor 3 or switch the other motors according to the setting of the threshold value. In addition, the solubility signal can be transmitted in real time to realize the real-time monitoring of the explosion-proof motor 3. It should be noted that the combustible gas of the explosion-proof motor 3 will gather in the motor housing and reach a certain concentration in the motor housing, thus causing an explosion, and the concentration signal can be acquired more accurately, since the probe head of the combustible gas sensor 11 should be placed in the motor housing. Explosion proof machine 3 passes through explosion proof machine monitoring devices goes on the monitoring of combustible gas helps solving among the prior art can't correspond and is applied to in the combustible gas operating mode explosion proof machine carries out the technical problem who monitors.
In an embodiment, the at least one sensor 1 further comprises a discharge sensor 12.
The first end 121 of the discharge sensor 12 is electrically connected with the monitoring module 2, and the second end 122 of the discharge sensor 12 is used for acquiring the discharge state of the explosion-proof motor 3 to obtain a discharge signal, and sending the discharge signal to the monitoring module 2 to realize that the monitoring module 2 monitors the discharge state of the explosion-proof motor 3.
In the embodiment, an embodiment of the monitoring apparatus for an explosion-proof motor with a discharge sensor 12 is provided, under the working condition with the combustible gas, besides monitoring the concentration of the combustible gas, the discharge phenomenon of the explosion-proof motor 3 is also another important reason for generating an explosion, so that besides monitoring the concentration of the combustible gas in the explosion-proof motor 3, the discharge condition in the explosion-proof motor 3 should also be monitored.
Fig. 2 is a schematic structural diagram of an explosion-proof motor monitoring device according to another embodiment of the present application. As shown in fig. 2, in one embodiment, the second end 122 of the discharge sensor 12 is a fiber optic probe disposed in the discharge region 31 of the explosion-proof motor 3.
In the present embodiment, a specific embodiment of the discharge sensor 12 is provided, and the fiber-optic probe is adopted to monitor the discharge phenomenon in the explosion-proof motor 3. The discharge can also occur inside the explosion-proof motor 3, namely inside the motor housing, and the motor housing is in a relatively closed state, the internal environment of the motor housing is almost in a lightless state, as long as an electric spark occurs during the discharge process, and the light emitted by the electric spark can be transmitted to the monitoring module 2 through one end of the optical fiber probe, because the light is basically in a non-attenuation state in the optical fiber, the discharge in the motor housing can be monitored by utilizing the characteristic of the optical fiber.
In one embodiment, the fiber optic probe extends a plurality of optical fibers, and the fiber optic probe is respectively directed to different positions of the discharge region 31, so that the fiber optic probe can detect the entire range of the discharge region 31.
In the present embodiment, a specific embodiment of the fiber-optic probe is provided, the fiber-optic probes extend out of the fiber-optic probe and face the discharge area 31, and the fiber-optic probes can detect the whole range in the discharge area 31, so as to prevent dead angles.
In an embodiment, the at least one sensor 1 further comprises a winding temperature sensor 13;
one end of the winding temperature sensor 13 is electrically connected with the monitoring module 2, and the other end of the winding temperature sensor 13 is used for acquiring the winding temperature of the explosion-proof motor 3 to obtain a temperature signal, and the temperature signal is sent to the monitoring module 2 to monitor the winding temperature in the explosion-proof motor 3 by the monitoring module 2.
In the present embodiment, an explosion-proof motor monitoring device having a winding temperature sensor 13 is provided, and in addition to the above-mentioned discharge phenomenon, the winding temperature in the explosion-proof motor 3 is also one of important factors causing explosion, so that it is also an important matter to monitor the winding temperature by the winding temperature sensor 13.
Fig. 3 is a schematic structural diagram of the explosion-proof motor monitoring device provided with the remote control center and the central processing module in another embodiment. As shown in fig. 3, in one embodiment, the monitoring module 2 includes a remote control center 21 and a central processing module 22.
The remote control center 21 is used for monitoring the signals acquired by the at least one sensor 1.
The central processing module 22 is electrically connected with the at least one sensor 1 and the remote control center 21, and is configured to encode a signal acquired by the at least one sensor 1 to obtain a monitoring data code, and send the monitoring data code to the remote control center 21, so that the remote control center 21 monitors the explosion-proof motor 3 according to the monitoring data code.
In this embodiment, a specific structure of the monitoring module 2 is provided, the remote control center 21 can display the acquired signal data in real time in a master console mode, and the master console can monitor the data corresponding to the signal in real time through user operations.
The central processing module 22 processes the signal collected by the at least one sensor 1, and then performs real-time information interaction with the remote control center 21. In addition, the central processing module 22 encodes the signal to obtain a monitoring data code, and the remote control center 21 decodes and finally displays the monitoring data code after receiving the monitoring data code, or performs operations such as closing or alarming on the explosion-proof motor 3 according to a decoded result.
In one embodiment, the central processing module 22 includes a signal processing unit 221 and a multiplexer 222, as well as a voltage-to-frequency conversion module 223 and a fiber-optic module 224.
The signal processing unit 221 is connected to the at least one sensor 1, and the signal processing unit 221 is configured to receive signals collected by the at least one sensor 1.
The multiplexer 222 is electrically connected to the signal processing unit 221, and the multiplexer 222 is configured to encode the plurality of signals received by the signal processing unit 221 in an ordered electrical waveform with intervals to obtain the monitoring data code.
The voltage frequency conversion module 223 is electrically connected to the signal processing unit 221, and the voltage frequency conversion module 223 is configured to convert the monitoring data code into a voltage frequency signal.
One end of the optical fiber module 224 is connected with the voltage-frequency conversion module 223, and the other end of the optical fiber module 224 is connected with the remote control center 21, so that the voltage-frequency signal is sent to the remote control center 21 through the module 224 to realize monitoring of the explosion-proof motor 3.
In the present embodiment, a specific structure of the central processing module 22 is provided, and the signal processing unit is configured to receive signals of the at least one sensor 1, such as the concentration signal and the discharge signal, and the temperature signal. The multiplexer 222 encodes the signal, for example, the concentration signal is 36%, then 36 numbers can be converted into binary, which can facilitate the transmission of the signal, the discharge signal can be represented by 0 with discharge and 1 without discharge, which are also binarized, the temperature signal can also be binarized in the same manner as the concentration signal, for example, 52 degrees with winding temperature, 52 is binarized, and finally the signal is converted into an ordered electrical wave form with intervals. For example, the first 3 seconds represents the density signal, 3 seconds is divided into 9 digits, each digit is one third of a second, the first digit has electric wave passing and represents 1, the second data has no electric wave passing and represents 0, after 3 seconds, 9 digits can form a binary code by the existence of electric wave, the binary code represents the density signal in binary for the first 3 seconds, then 3 seconds are arranged, a digit of one third of a second is arranged, the digit has electric wave of 1, the absence of electric wave of 0 represents the discharge signal, 1 represents the discharge phenomenon, 0 represents the absence of discharge phenomenon, then 3 seconds are arranged, the temperature signal is arranged in the same way, and the nature of the finally formed ordered electric wave waveform with intervals represents a group of codes, namely the monitoring data code. The monitoring data code is converted into a corresponding voltage frequency by the voltage frequency conversion module 223 for output, i.e. the voltage frequency signal. It should be noted that the voltage frequency signal may be propagated in the form of light, and thus, the voltage frequency signal is finally transmitted to the remote control center 21 by using the optical fiber module 224. The solid arrows between the fiber optic module 224 and the remote control center 21 indicate the flow of the signals.
In one embodiment, the central processing module 22 further includes a photoelectric conversion unit 225;
the photoelectric conversion unit 225 is connected in series between the signal processing unit 221 and the discharge sensor 12, and the photoelectric conversion unit 225 is configured to convert an optical signal received by the fiber probe into a discharge electrical signal and send the discharge electrical signal to the signal processing unit 221.
In the present embodiment, a specific embodiment is provided in which the photoelectric conversion unit 225 is connected in series between the signal processing unit 221 and the discharge sensor 12, because the concentration signal and the temperature signal are both electric signals when collected, and the discharge signal may be an optical signal, so that the optical signal is converted into the electric signal by the photoelectric conversion unit 225, so that the signal processing unit 221 performs processing uniformly.
In one embodiment, the central processing module 22 further includes a fiber optic power converter 226 and a voltage conversion module 227.
The fiber optic power converter 226 is connected to the fiber optic module 224 such that the fiber optic power converter 225 converts the external light energy into electrical energy through the fiber optic module 224. I.e. the dashed arrow between the remote control center 21 and the fiber optic module 224 in fig. 3, the remote control center 21 can provide the optical energy to the fiber optic module 224 through an additional optical fiber.
The voltage conversion module 227 is electrically connected to the optical fiber power converter 225, and the voltage conversion module 227 is used for supplying the power to the signal processing unit 221 and the multiplexer 222, and the voltage frequency conversion module 223 and the optical fiber module 224.
In this embodiment, a specific implementation manner is provided for supplying power to the signal processing unit 221 and the multiplexer 222, and the voltage-frequency conversion module 223 and the optical fiber module 224 by using the optical fiber power converter 226 and the voltage conversion module 227, so as to achieve the voltage levels of the signal processing unit 221 and the multiplexer 222, and the voltage-frequency conversion module 223 and the optical fiber module 224, in addition to the above components, the photoelectric conversion unit 225 may also be supplied with power, the optical fiber module 224 may also receive optical energy of a laser in addition to the above function of sending the voltage-frequency signal to the remote control center 21 through the optical fiber module 224 to monitor the explosion-proof motor 3, and the optical fiber module 224 needs to convert the optical energy into the electrical energy to supply power to the above components.
In one embodiment, the combustible gas sensor 11 is an MQ-2 sensor.
In the present example, a specific implementation of a combustible gas sensor 11 is provided, the MQ-2 sensor being primarily through SnO2Property of (2) SnO2When the concentration of the combustible gas is low, the conductivity of the combustible gas is low, and the SnO is continuously added with the concentration of the combustible gas2The conductivity of the MQ-2 sensor is increased, the current value in the MQ-2 sensor is also increased when the same voltage is applied, and different concentrations of the combustible gas can be corresponded through different current values, so that the concentration signal is collected.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. Explosion proof machine monitoring devices, its characterized in that, explosion proof machine monitoring devices includes:
at least one sensor (1); and
the monitoring module (2) is electrically connected with the at least one sensor (1), so that the monitoring module (2) monitors the explosion-proof motor (3) through signals acquired by the at least one sensor (1);
the at least one sensor (1) comprises:
a combustible gas sensor (11), the one end of combustible gas sensor (11) with monitoring module (2) electricity is connected, combustible gas sensor (11) other end is arranged in gathering the concentration of combustible gas in explosion-proof machine (3) and obtains the concentration signal, and will concentration signal send to monitoring module (2) is in order to realize monitoring module (2) is right the concentration of combustible gas monitors in the explosion-proof machine.
2. Explosion proof motor monitoring device according to claim 1, characterized in that the at least one sensor (1) further comprises:
the first end (121) of the discharge sensor (12) is electrically connected with the monitoring module (2), the second end (122) of the discharge sensor (12) is used for collecting a discharge signal of the explosion-proof motor (3), and the discharge signal is sent to the monitoring module (2) to realize that the monitoring module (2) monitors the discharge state of the explosion-proof motor (3).
3. An explosion-proof motor monitoring device according to claim 2, characterized in that the second end (122) of the discharge sensor (12) is a fiber optic probe which is arranged in a discharge region (31) within the explosion-proof motor (3).
4. An explosion-proof motor monitoring device according to claim 3, characterized in that the fiber optic probe extends out of a plurality of optical fibers, the fiber optic probe being respectively directed to different positions of the discharge region (31) so that the fiber optic probe can probe the full extent of the discharge region (31).
5. An explosion proof motor monitoring device according to claim 3, characterized in that said at least one sensor (1) further comprises:
a winding temperature sensor (13), the one end of winding temperature sensor (13) with monitoring module (2) electricity is connected, the other end of winding temperature sensor (13) is used for gathering the winding temperature of explosion-proof machine (3) obtains temperature signal, and will temperature signal send to monitoring module (2) is in order to realize monitoring module (2) is right winding temperature monitors in explosion-proof machine (3).
6. Explosion proof motor monitoring device according to claim 5, characterized in that the monitoring module (2) comprises:
a remote control center (21), wherein the remote control center (21) is used for monitoring the signals collected by the at least one sensor (1); and
a central processing module (22), central processing module (22) respectively with at least one sensor (1) with remote control center (21) electricity is connected, be used for with the signal of at least one sensor (1) collection encodes and obtains the monitoring data sign indicating number, and will the monitoring data sign indicating number send to remote control center (21), so that remote control center (21) basis the monitoring data sign indicating number is right explosion-proof machine (3) monitors.
7. Explosion proof motor monitoring device according to claim 6, characterized in that the central processing module (22) comprises:
the signal processing unit (221), the signal processing unit (221) is respectively connected with the at least one sensor (1), and the signal processing unit (221) is used for receiving the signals collected by the at least one sensor (1);
a multiplexer (222), the multiplexer (222) is electrically connected to the signal processing unit (221), the multiplexer (222) is configured to encode the signals received by the signal processing unit (221) in an ordered electrical waveform with intervals to obtain the monitoring data code;
the voltage frequency conversion module (223), the voltage frequency conversion module (223) is electrically connected with the signal processing unit (221), and the voltage frequency conversion module (223) is used for converting the monitoring data code into a voltage frequency signal;
one end of the optical fiber module (224) is connected with the voltage-frequency conversion module (223), the other end of the optical fiber module (224) is connected with the remote control center (21), so that the voltage frequency signal is sent to the remote control center (21) through the optical fiber module (224) to realize monitoring of the explosion-proof motor (3).
8. Explosion proof motor monitoring device according to claim 7, characterized in that the central processing module (22) further comprises:
the photoelectric conversion unit (225) is connected in series between the signal processing unit (221) and the discharge sensor (12), and the photoelectric conversion unit (225) is used for converting the optical signal received by the optical fiber probe into a discharge electric signal and sending the discharge electric signal to the signal processing unit (221).
9. The explosion proof motor monitoring device of claim 8 wherein the central processing module (22) further comprises:
a fiber optic power converter (226), wherein the fiber optic power converter (226) is connected with the fiber optic module (224) so that the fiber optic power converter (225) converts external light energy into electric energy through the fiber optic module (224);
a voltage conversion module (227), wherein the voltage conversion module (227) is electrically connected with the optical fiber power converter (225), the voltage conversion module (227) is used for supplying the power to the signal processing unit (221) and the multiplexer (222), and the voltage frequency conversion module (223) and the optical fiber module (224).
10. Explosion proof motor monitoring device according to claim 1, characterized in that the combustible gas sensor (11) is an MQ-2 sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010872959.XA CN114113920A (en) | 2020-08-26 | 2020-08-26 | Explosion-proof motor monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010872959.XA CN114113920A (en) | 2020-08-26 | 2020-08-26 | Explosion-proof motor monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114113920A true CN114113920A (en) | 2022-03-01 |
Family
ID=80374302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010872959.XA Pending CN114113920A (en) | 2020-08-26 | 2020-08-26 | Explosion-proof motor monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114113920A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6014076A (en) * | 1996-12-31 | 2000-01-11 | Global Tech, Inc. | Apparatus and method for achieving intrinsic safety using conventional sensors |
| CN102539998A (en) * | 2011-12-21 | 2012-07-04 | 刘立文 | Electricity leakage early-warning device of explosion-proof electric machine |
| CN203349960U (en) * | 2013-06-05 | 2013-12-18 | 中国石化工程建设有限公司 | Temperature monitoring system used for explosion-proof motor |
| CN103595207A (en) * | 2013-11-30 | 2014-02-19 | 南阳防爆集团股份有限公司 | Explosion-proof three-phase asynchronous motor for coal mining machine pump |
| CN104374491A (en) * | 2014-11-28 | 2015-02-25 | 南阳防爆集团股份有限公司 | Explosion-proof motor rotor temperature measuring device and method |
| CN104535267A (en) * | 2014-12-31 | 2015-04-22 | 中国矿业大学 | Coal cutter coal motor cutting malfunction monitoring device and method |
| CN204965692U (en) * | 2015-09-22 | 2016-01-13 | 成都岚熠科技有限公司 | Gaseous detecting alarm device of integration based on photoelectricity distance sensor |
| CN207908110U (en) * | 2018-01-15 | 2018-09-25 | 汇龙电机有限公司 | A kind of fire-proof motor hydraulic pressure test equipment |
| CN108995534A (en) * | 2018-01-31 | 2018-12-14 | 太原科技大学 | A kind of anti-explosion electric sweeper malfunction monitoring alarm system |
| CN209055632U (en) * | 2018-11-16 | 2019-07-02 | 哈尔滨理工大学 | It is a kind of for monitoring the space full angle ultrasonic wave optical fiber Fabry-Perot sensor of liquid-solid composite insulating power apparatus local discharge |
| CN109975703A (en) * | 2019-04-04 | 2019-07-05 | 华夏天信（北京）智能低碳技术研究院有限公司 | A kind of intelligence sensor and system for mine intrinsic safety motor health status monitoring |
| CN209858161U (en) * | 2019-05-27 | 2019-12-27 | 百斯特（广州）信息技术有限公司 | Explosion-proof motor fault monitoring system based on NB-IoT |
-
2020
- 2020-08-26 CN CN202010872959.XA patent/CN114113920A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6014076A (en) * | 1996-12-31 | 2000-01-11 | Global Tech, Inc. | Apparatus and method for achieving intrinsic safety using conventional sensors |
| CN102539998A (en) * | 2011-12-21 | 2012-07-04 | 刘立文 | Electricity leakage early-warning device of explosion-proof electric machine |
| CN203349960U (en) * | 2013-06-05 | 2013-12-18 | 中国石化工程建设有限公司 | Temperature monitoring system used for explosion-proof motor |
| CN103595207A (en) * | 2013-11-30 | 2014-02-19 | 南阳防爆集团股份有限公司 | Explosion-proof three-phase asynchronous motor for coal mining machine pump |
| CN104374491A (en) * | 2014-11-28 | 2015-02-25 | 南阳防爆集团股份有限公司 | Explosion-proof motor rotor temperature measuring device and method |
| CN104535267A (en) * | 2014-12-31 | 2015-04-22 | 中国矿业大学 | Coal cutter coal motor cutting malfunction monitoring device and method |
| CN204965692U (en) * | 2015-09-22 | 2016-01-13 | 成都岚熠科技有限公司 | Gaseous detecting alarm device of integration based on photoelectricity distance sensor |
| CN207908110U (en) * | 2018-01-15 | 2018-09-25 | 汇龙电机有限公司 | A kind of fire-proof motor hydraulic pressure test equipment |
| CN108995534A (en) * | 2018-01-31 | 2018-12-14 | 太原科技大学 | A kind of anti-explosion electric sweeper malfunction monitoring alarm system |
| CN209055632U (en) * | 2018-11-16 | 2019-07-02 | 哈尔滨理工大学 | It is a kind of for monitoring the space full angle ultrasonic wave optical fiber Fabry-Perot sensor of liquid-solid composite insulating power apparatus local discharge |
| CN109975703A (en) * | 2019-04-04 | 2019-07-05 | 华夏天信（北京）智能低碳技术研究院有限公司 | A kind of intelligence sensor and system for mine intrinsic safety motor health status monitoring |
| CN209858161U (en) * | 2019-05-27 | 2019-12-27 | 百斯特（广州）信息技术有限公司 | Explosion-proof motor fault monitoring system based on NB-IoT |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102411119B (en) | Intelligent monitoring device for temperature and insulation state of 330KV high-voltage cable in hydropower station | |
| CN101943659B (en) | Multiparameter water quality comprehensive analyzer | |
| CN108020756A (en) | A kind of cable monitoring device | |
| CN210129012U (en) | Switch cabinet partial discharge monitoring and early warning device based on gas monitoring | |
| CN110619727A (en) | Underground power cable external damage prevention early warning system based on optical fiber vibration sensing technology | |
| CN203455936U (en) | Passive wireless temperature rise monitoring device | |
| CN101893559B (en) | Infrared quantitative leak detector of sulfur hexafluoride gas | |
| CN110416022A (en) | A kind of multifunctional gas density monitor | |
| CN204243909U (en) | A kind of SF 6primary cut-out Leakage Gas remote monitoring device | |
| CN114113920A (en) | Explosion-proof motor monitoring device | |
| CN110658148A (en) | Gas monitoring device | |
| CN110243780A (en) | A kind of Internet of Things type power transformer environment monitoring device | |
| CN212301747U (en) | High-voltage cable sheath grounding circulation on-line monitoring terminal and on-line monitoring system | |
| CN211602218U (en) | Optical fiber temperature measuring system for monitoring temperature of circuit contact position | |
| CN105424756B (en) | Toothed belt detection device and method and variable pitch device | |
| CN220730307U (en) | High-voltage power cable sheath ground fault circulation monitoring system | |
| CN208270101U (en) | Switchgear passive and wireless temp measuring system | |
| CN219064576U (en) | Online intelligent monitoring device and system based on carbon brush | |
| CN202393866U (en) | Hydropower station 330kV high voltage cable temperature and insulating state intelligent monitoring device | |
| CN213517949U (en) | Crack monitoring system | |
| CN216348826U (en) | Explosion-proof electrical inspection environment testing and early warning system | |
| CN101943724A (en) | Online detection device of surge protective device | |
| CN204758134U (en) | Temperature monitoring system and low pressure pull -out type switch | |
| CN211085488U (en) | Wireless intelligent temperature measurement monitoring devices | |
| CN210865046U (en) | Test equipment on-line monitoring system with various alarm functions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20240315 Address after: Nuremberg, Germany Applicant after: Yinmengda Co.,Ltd. Country or region after: Germany Address before: Munich, Germany Applicant before: SIEMENS AG Country or region before: Germany |
|
| TA01 | Transfer of patent application right |