CN216767832U - Fan equipment of real-time supervision and closed loop regulation and control - Google Patents
Fan equipment of real-time supervision and closed loop regulation and control Download PDFInfo
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- CN216767832U CN216767832U CN202122289036.4U CN202122289036U CN216767832U CN 216767832 U CN216767832 U CN 216767832U CN 202122289036 U CN202122289036 U CN 202122289036U CN 216767832 U CN216767832 U CN 216767832U
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Abstract
The utility model relates to the technical field of fan equipment, in particular to fan equipment for real-time monitoring and closed-loop regulation, wherein a control cabinet is arranged on the ground and is in control connection with a fan; the control cabinet is internally provided with a PLC, an analog quantity module, a frequency converter, a touch screen and a button which are electrically connected with each other; the fan is provided with the sensor in air outlet side, sensor electric connection switch board. The utility model has the beneficial effects that: the online real-time monitoring of multi-parameter information such as wind speed, temperature, wind pressure and the like of the fan is realized; the data are analyzed in real time, the analysis result is fed back to the frequency converter through the PLC, the rotating frequency of the fan motor is adjusted, the motor frequency is not operated in a single mode any more, the motor frequency is processed intelligently according to the change of the external environment, and the rotation of the fan can be stopped at any time when sudden changes of temperature, wind speed and the like occur.
Description
Technical Field
The utility model relates to the technical field of fan equipment, in particular to fan equipment for real-time monitoring and closed-loop regulation and control.
Background
The air volume and the air pressure of the fan are the most direct performance parameters for measuring the performance of the fan, and the air volume and the air pressure can be influenced by the internal operation condition and the structural condition of the fan, the operation working condition and the use mode. The air quantity and the air pressure are closely related to the air speed, and the traditional fan using mode is to ensure that the rotating speed of the fan is simply increased, so that the service life of the fan is shortened, and the energy is wasted. Traditional fan equipment simple structure, function singleness only can satisfy specific demand. When the external conditions change, the intelligent response cannot be realized, and the failure occurrence frequency is high. The performance of the existing fan is easily influenced by the change of the external environment (such as temperature change) in the use process of the existing fan, and a system for controlling the operation of the fan aiming at the change of the external environment does not exist at present.
For this reason, this application has designed fan equipment of real-time supervision and closed loop regulation and control to solve above-mentioned problem.
Disclosure of Invention
The utility model provides a fan device for real-time monitoring and closed-loop regulation and control, aiming at overcoming the defect that the traditional fan structure in the prior art is single in function.
The utility model is realized by the following technical scheme:
the utility model provides a fan equipment of real-time supervision and closed loop regulation and control, includes the switch board, its characterized in that:
the control cabinet is arranged on the ground and is in control connection with the fan;
the control cabinet is internally provided with a PLC, an analog quantity module, a frequency converter, a touch screen and a button which are electrically connected with each other;
the fan is provided with the sensor in air outlet side, sensor electric connection switch board.
Further, in order to better implement the present invention, the sensor includes a wind speed sensing module, a wind pressure sensing module and a temperature sensing module.
Furthermore, in order to better realize the utility model, the sensor is connected with an analog quantity module in the control cabinet through a cable, the PLC obtains an actual measured value in real time through the analog quantity module, target values of the temperature, the wind speed and the wind pressure of the fan are set through a touch screen connected with the PLC, PID adjustment of fan parameter values is realized in the PLC, and the PLC transmits a result after PID operation to the frequency converter in the form of analog quantity voltage to complete closed-loop control.
Further, in order to better realize the utility model, the PLC is Siemens SR 20; the touch screen is Siemens smart 700IE V3; the analog quantity module is EM AM 03; the frequency converter is Siemens V20.
The utility model has the beneficial effects that:
1. the online real-time monitoring of multi-parameter information such as wind speed, temperature, wind pressure and the like of the fan is realized;
2. the data are analyzed in real time, the analysis result is fed back to the frequency converter through the PLC to adjust the rotating frequency of the fan motor, so that the motor frequency does not run singly any more, the motor frequency is processed intelligently according to the change of an external environment, and the rotation of the fan can be stopped at any time when the temperature, the wind speed and other sudden changes occur;
3. the feedback type technology and equipment of the intelligent fan are important contents for realizing the technical breakthrough of high-end equipment in the 'ten-strong industry', and play an important role in changing the existing backward industrial structure upgrading;
4. the method has important leading effects on energy conservation and environmental protection in the field of fans, personal safety guarantee and promotion of industrial transformation and upgrading.
Drawings
FIG. 1 is a block diagram of the components of the fan apparatus of the present invention;
FIG. 2 is a schematic diagram of the operation of the fan apparatus of the present invention;
FIG. 3 is a flow chart of the operation of the fan apparatus of the present invention;
FIG. 4 is a schematic diagram of the PID algorithm structure of the present invention;
fig. 5 is a graph of the time variation of the conditioning process of the present invention.
In the figure, the position of the upper end of the main shaft,
1. the system comprises a control cabinet, 2, a PLC, 3, an analog quantity module, 4, a frequency converter, 5, a touch screen, 6, a button, 7, a sensor, 8 and a fan.
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. It is to be understood that the described embodiments are merely a few embodiments of the utility model, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally laid out when products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that the terms "disposed," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. Either mechanically or electrically. They may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
Fig. 1 to 5 show an embodiment of the present invention, which is a real-time monitoring and closed-loop control fan device, and implements real-time monitoring of multi-parameter information and closed-loop control of a fan motor, thereby implementing a PID control function of fan speed and intelligent fan closed-loop control.
The fan equipment of this embodiment has switch board 1, PLC 2, analog module 3, converter 4, touch-sensitive screen 5, button 6, air velocity transducer 7, fan 8. The PLC 2, the analog quantity module 3 and the frequency converter 4 are arranged in the control cabinet 1, the touch screen 5 and the buttons are arranged on the control cabinet 1, the control cabinet is electrically connected with the fan 8, and the sensor 7 is arranged on the air outlet side of the fan 8 and electrically connected with the control cabinet 1. The sensor 7 is divided into a temperature sensing module, a wind pressure sensing module and a wind speed sensing module, the sensor 7 is connected with the analog quantity module 3 through a cable, and the PLC 2 obtains an actual measurement value in real time through the analog quantity module 3. The target values of the temperature, the wind speed and the wind pressure of the fan 8 are set through a touch screen connected with the PLC 2, PID (difference, integral and differential) adjustment of fan parameter values is realized in the PLC 2, the difference, integral and differential coefficients in the PID adjustment can be set automatically, the PLC 2 transmits the result obtained after PID operation to the frequency converter in the form of analog quantity voltage, and finally the PID adjustment function of the wind speed of the mining fan is realized, and the purpose of intelligent closed-loop control is achieved. Compared with the prior art, the PID control function of the wind speed of the fan and the intelligent fan closed-loop control are realized.
In the embodiment, the PLC 2 is Siemens SR20, the touch screen 5 is Siemens smart 700IE V3, the analog quantity module 3 is EM AM03, the frequency converter 4 is Siemens V20, and the adjustable wind speed range of the system is 0-20 m/s. The specific workflow is shown in fig. 3.
Temperature, wind speed, wind pressure sensor etc. have been introduced and can be on-line perception fan 8 ambient temperature and the information of wind speed, wind pressure, sensor 7 links to each other with analog quantity module 3 through the cable, and PLC 2 obtains actual parameter signal information through analog quantity module 3 in real time, then shows in touch-sensitive screen 5 in real time, and the numerical accuracy of wind speed, temperature, wind pressure can reach the percentile.
The information of each parameter on the touch screen 5 can be manually set, and a main interface, a manual interface and an alarm interface can be switched. The main interface displays information such as wind direction monitoring, wind speed monitoring, wind pressure monitoring, temperature monitoring, humidity monitoring, fan frequency monitoring, wind speed target threshold value and the like; setting the frequency setting information of the fan in the interface manually; the alarm interface can generate fault specific information and is provided with a button for solving the alarm information.
The PLC comprises a PID (differential, integral and differential) module, the module comprises a PID algorithm, a calculation formula is shown as follows, and a structural schematic diagram is shown as 4.
Simulating a PID control principle:
wherein e (t) represents the input signal, u (t) represents the output signal, and the proportionality coefficient of the Kp controller; ti is an integral coefficient of the controller; td is the differential coefficient of the controller. The proportional coefficient, the integral coefficient and the differential coefficient can be adjusted, and the optimal coefficient value can be obtained according to field environment experiment tests.
And the actual temperature value, the actual wind speed value and the actual wind pressure value are fed back to the touch screen 5 after the temperature, the wind speed and the wind pressure are obtained in the PLC according to a calculation formula. Similarly, parameter information such as temperature, wind speed, wind pressure, and frequency is exchanged between the PLC 2 and the analog module 3. In the automatic mode, the PLC 2 continuously performs the PID operation, and the fan 8 operates in a state of outputting the initial value of the wind speed when the new wind speed value is not set. After inputting a new set value, the PLC 2 continuously adjusts the fan rotation speed according to the fed back actual value, so that the actual value continuously approaches the set value, the initial value and the set value are not in a linear change relationship, and fig. 5 shows a time change curve from the initial value to the set value.
The PID algorithm calculates the difference, statistic and speed information of signals through difference, integral and differential algorithms, makes intelligent judgment, gives feedback signal information, inputs frequency parameters to the frequency converter 4 in a current mode through the analog quantity module 3, and the frequency converter 4 drives the fan 8 to rotate at corresponding frequency. Meanwhile, the sensor 7 arranged at the air outlet of the fan measures the temperature, the wind speed and the wind pressure information in real time and inputs the information to the analog quantity module 3 in a current mode.
The feedback signal command is input to the frequency converter 4, and the frequency converter 4 controls the frequency change of the fan 8. The speed of the fan 8 depends on the frequency setting of the frequency converter 4, and the higher the frequency, the faster the speed, and vice versa, the lower the speed. The frequency converter 4 can control the change of the frequency of the fan 8 in real time according to the instruction of the PLC 2. When the external environment temperature and the external state suddenly change, the closed-loop control system can stop the rotation of the motor at any time, so that the occurrence of accidents is avoided.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent substitutions made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (3)
1. The utility model provides a fan equipment of real-time supervision and closed loop regulation and control, includes switch board (1), its characterized in that:
the control cabinet (1) is arranged on the ground, and the control cabinet (1) is in control connection with the fan (8);
the control cabinet (1) is internally provided with a PLC (2), an analog quantity module (3), a frequency converter (4), a touch screen (5) and a button (6) which are electrically connected with each other;
a sensor (7) is arranged on the air outlet side of the fan (8), and the sensor (7) is electrically connected with the control cabinet (1);
sensor (7) are through analog quantity module (3) in cable connection switch board (1), and PLC (2) obtain the actual measurement value in real time through analog quantity module (3), and the temperature of fan, wind speed and wind pressure target value are set for through touch-sensitive screen (5) that link to each other with PLC (2), and realize the PID regulation of fan parameter value inside PLC (2), and PLC (2) transmit converter (4) with the form of analog quantity voltage with the result after the PID operation, accomplish closed-loop control.
2. The fan apparatus of real-time monitoring and closed-loop regulation of claim 1, wherein:
the sensor (7) comprises a wind speed sensing module, a wind pressure sensing module and a temperature sensing module.
3. The fan apparatus of real-time monitoring and closed-loop regulation of claim 1, wherein:
the PLC (2) is Siemens SR 20; the touch screen (5) is Siemens smart 700IE V3; the analog quantity module (3) is EM AM 03; the frequency converter (4) is Siemens V20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122289036.4U CN216767832U (en) | 2021-09-22 | 2021-09-22 | Fan equipment of real-time supervision and closed loop regulation and control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122289036.4U CN216767832U (en) | 2021-09-22 | 2021-09-22 | Fan equipment of real-time supervision and closed loop regulation and control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216767832U true CN216767832U (en) | 2022-06-17 |
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ID=81955115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122289036.4U Active CN216767832U (en) | 2021-09-22 | 2021-09-22 | Fan equipment of real-time supervision and closed loop regulation and control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216767832U (en) |
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2021
- 2021-09-22 CN CN202122289036.4U patent/CN216767832U/en active Active
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