CN214281276U

CN214281276U - RIE industrial power saving device

Info

Publication number: CN214281276U
Application number: CN202022884698.1U
Authority: CN
Inventors: 张鹏; 王帅; 郭春生; 葛四顺
Original assignee: Hebei Ruiyu Technology Co ltd; Yangquan Coal Industry Group Co Ltd
Current assignee: Hebei Ruiyu Technology Co ltd; Yangquan Coal Industry Group Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-09-24
Anticipated expiration: 2030-12-03

Abstract

The utility model discloses a RIE industrial power saving device, which relates to the technical field of industrial energy saving, and comprises a mainboard, wherein the mainboard is provided with an input end of a power supply and an output end for connecting a motor load, the mainboard is provided with a PLC module, a frequency conversion module, an alarm device, a filter and a plurality of sensors which are electrically connected with the PLC module through a mainboard circuit, and the plurality of sensors are distributed on control nodes of industrial production; the filter channel conductor is electrically connected with a circuit breaker; the frequency conversion module is electrically connected with a filtering reactance module through a mainboard circuit, the filtering reactance module is electrically connected with a plurality of contactors through data lines, and the contactors are connected to a motor load through output ends; the contactor is also connected to a bypass unit. The utility model discloses an aspect can the control power output's minimizing, obtains higher energy-conserving effect, and on the other hand, the device can also protect the motor not too hot not burn out, prolongs motor life effectively.

Description

RIE industrial power saving device

Technical Field

The utility model belongs to the technical field of the industry is energy-conserving, concretely relates to RIE industry power saving device.

Background

The motor is widely applied to central air conditioning systems such as fans, pumps, compressors, belt conveyors and elevators, petrochemical systems, air compressor systems, boiler heat exchange systems, water systems, refrigeration systems and the like, becomes a source of power energy consumption, reduces the energy consumption of the motor and reduces the industrial energy consumption from the source, the motor has different working characteristics under different conditions such as different loads, different motors, different working environments and different time (such as different environmental temperatures), and each characteristic curve of the different characteristics curves has a minimum power output point (see fig. 1). How to automatically find the output point in real time becomes the key point for reducing energy consumption, and therefore, an RIE industrial power saving device is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a RIE industry power saving device can seek the minimum power output point of motor automatically in real time, and the minimizing of control power output obtains higher energy-conserving effect, increases the energy-conserving rate about 5% -15% on frequency conversion energy-conserving basis usually, and on the other hand, the device can also protect the motor not overheat and not burn out, prolongs motor life effectively.

The utility model provides a following technical scheme: an RIE industrial power saving device comprises a mainboard, wherein the mainboard is provided with an input end of a power supply and an output end for connecting a motor load, the mainboard is provided with a PLC module, a frequency conversion module, an alarm device, a filter and a plurality of sensors, the frequency conversion module is electrically connected with the PLC module through a mainboard circuit, and the sensors are distributed on control nodes of industrial production;

the filter channel conductor is electrically connected with a circuit breaker, and the circuit breaker is connected to the upstream of the input end;

the frequency conversion module is electrically connected with a filtering reactance module through a mainboard circuit, the filtering reactance module is electrically connected with a plurality of contactors through data lines, and the contactors are connected to a motor load through the output ends;

the contactor is also connected to a bypass unit.

Furthermore, the PLC module is a programmable controller, and a PID adjusting module is arranged in the PLC module.

Furthermore, the sensor is one or more of a force-sensitive sensor, a position sensor, a liquid level sensor, an energy consumption sensor, a speed sensor, an acceleration sensor, a ray radiation sensor and a heat-sensitive sensor.

Furthermore, the mainboard is also provided with an RS85 communication interface for network connection and a network communication module connected with the RS85 communication interface, and the network communication module is electrically connected with the PLC module in a data mode.

Furthermore, the PLC module is connected with a control panel through a mainboard circuit, and the control panel is provided with a display screen and a keyboard.

Furthermore, the alarm device is one or a combination of a visual alarm, an auditory alarm or an olfactory alarm.

The utility model has the advantages that: the minimization of power output is controlled, a higher energy-saving effect is obtained, the energy-saving rate is increased by about 5% -15% on the basis of frequency conversion energy saving, on the other hand, the device can also protect the motor from overheating and burning, the service life of the motor is effectively prolonged, and the method specifically comprises the following steps: the parameter target of the automatic control is usually the refrigerant outlet temperature, the medium pressure (e.g. oil pressure, water pressure, air pressure) or the medium level. In any controlled parameter, after a target numerical parameter is given in engineering, the device can automatically adapt to the disturbance of the external environment to the parameter target, and continuously adjust the rotation number of the motor, so that the output of the physical parameters is unchanged. When the parameter exceeds the target value, for example, the pressure is high, the method of pressure relief is not adopted, but the method of reducing the number of revolutions of the motor is adopted to reduce the high pressure, so that the energy waste caused by pressure relief is saved. The motor can not be stopped and started frequently by tracking the output parameters all the time, thereby protecting the motor and saving the energy waste caused by frequent starting.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic diagram of a computer power minimization control energy saving for an electric motor;

fig. 2 is a schematic structural diagram of the present invention;

fig. 3 is a schematic structural diagram of an embodiment of the present invention;

labeled as: 1. a PLC module; 2. a frequency conversion module; 3. an alarm device; 4. a filter; 5. a circuit breaker; 6. a filter reactance module; 7. a contactor; 8. a motor load; 9. a bypass unit; 10. an input end; 11. an output end; 12. an RS485 communication interface; 13. a network communication module; 14. a display screen; 15. a keyboard; 16. a sensor; 17. a slag pump; 18. an overflow pipe; 19. a high-level water sump; 20. an ultrasonic liquid level sensor.

Detailed Description

The present invention will be further described with reference to the following specific examples. These examples are provided only for illustrating the present invention and are not intended to limit the scope of the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided" and "connected" are to be interpreted broadly, and may be, for example, 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.

The structural features of the present invention will now be described in detail with reference to the accompanying drawings.

Referring to fig. 2, an RIE industrial power saving device includes a main board, where an input terminal 10 of a power supply and an output terminal 11 for connecting to a motor load 8 are provided on the main board, and the input power supply of the input terminal 10: three-phase 320V-460V AC, input frequency: 50/60HZ ± 5%, output power of output terminal 11: 0-380V, output frequency: 0-60 HZ, input signal of the main board: 0-10 VDC, -10 VDC, 0-20 mA, 0-50 KHZ, the output signal of the mainboard: status signal, overload capability of the motherboard: 120%/1 minute of rated current, overcurrent capability of the motherboard: 150%/2 seconds of rated current, frequency accuracy of the motherboard: the simulation is set for +/-0.2%, the digit is set for +/-0.01%, the external pulse is set for +/-0.1%, a PLC module 1 is arranged on a mainboard, the PLC module 1 is a programmable controller, a PID adjusting module is arranged in the PLC module 1, a frequency conversion module 2 electrically connected with the PLC module 1 through a mainboard circuit, an alarm device 3, a filter 4 and a plurality of sensors 16 are arranged on a control node of industrial production, the frequency conversion module 2 can be adjusted at will within the range of 0-60 HZ, the alarm device 3 is a visual alarm, one or more of an auditory alarm or an olfactory alarm, the plurality of sensors 16 are distributed and arranged on the control node of the industrial production, and the sensors 16 are one or more of force sensitive sensors, position sensors, liquid level sensors, energy consumption sensors, speed sensors, acceleration sensors, ray radiation sensors and thermosensitive sensors.

The filter 4 channel conductor electric connection has circuit breaker 5, and circuit breaker 5 is connected to input 10, and circuit breaker 5 is used for short-circuit protection.

Frequency conversion module 2 has filtering reactance module 6 through mainboard circuit electric connection, and filtering reactance module 6 has a plurality of contactors 7 through data line electric connection, and contactor 7 is connected to motor load 8 through output 11 on, and contactor 7 still is connected to bypass unit 9.

The mainboard is also provided with an RS485 communication interface 12 for network connection and a network communication module 13 connected with the RS485 communication interface 12, and the network communication module 13 is electrically connected with the PLC module 1 in a data mode.

The PLC module 1 is also connected with a control panel (not shown in the attached figures) through a mainboard circuit, a display screen 14 and a keyboard 15 are arranged on the control panel, and a speed-reducing delay pump-stopping mode can be set through the keyboard 15; an acceleration and deceleration mode; automatic current limiting function, PID function, operation setting: setting upper and lower limit frequencies, carrying out frequency hopping operation and carrying out reverse operation limitation; slip frequency compensation, automatic steady voltage operation, RS485 communication, frequency increase progressively and decrease progressively control, trouble self-resuming operation, multimachine interlock operation realize alarming function through alarm device 3, overflow, overheated, overload, excessive pressure, under-voltage, lack the looks, short circuit warning, display screen 14 is used for showing: the system comprises an output frequency, an output current, an output voltage, a motor rotating speed, a set frequency, PID setting, PID feedback, module temperature, running time accumulation and analog input/output and terminal input states.

The utility model discloses a RIE industry power saving device, operating temperature: -20 ℃ +40 ℃, ambient humidity: less than 90%, use environment: indoor installation avoids corrosive gas, oil mist and dust, installation altitude: the cooling mode is that the cooling mode is less than 1000 meters and more than 1000 meters for derating use: and (5) forced air cooling. The device can automatically search the minimum power output point of the motor in real time, control the minimization of power output, obtain higher energy-saving effect, generally increase the energy-saving rate by about 5-15 percent on the basis of frequency conversion energy saving, and on the other hand, the device can also protect the motor from being overheated and not burnt out, thereby effectively prolonging the service life of the motor.

The utility model discloses a RIE industry power saving device still possesses following characteristics, and frequency modulation range 0 ~ 60HZ is adjustable wantonly. Two groups of DC power supplies of 0-5V/10V, -10V- +10V are provided. 16 multi-speed control functions. And PID regulation control is built in. The carrier frequency is continuously adjustable from 1.5KHZ to 15KHZ, and the noise of the motor is reduced to the maximum extent. And (4) a standard RS485 communication interface. The system has the functions of soft start, soft stop, impact load resistance and the like. The energy-saving control system has an automatic energy-saving operation function, can automatically optimize a V/F curve according to the load size, and keeps high-efficiency energy-saving operation. The device has the functions of fault self-inspection and diagnosis, and protection functions of overcurrent, overheat, overload, overvoltage, undervoltage, phase failure, short circuit and the like. The current limiting circuit has an automatic current limiting function, has the capability of quickly and automatically inhibiting current, and prevents frequent overcurrent faults in the acceleration process and under an impact load. The device has a voltage stall prevention function and ensures that no overvoltage occurs in the deceleration process. Has a bypass function. The power-saving device has the display functions of frequency, rotating speed, voltage, current and the like, and realizes high power-saving rate of the product: the closed-loop control system is automatically adjusted, and the power saving rate is up to 15-50%. The equipment control system can be perfected according to actual working conditions. Environmental protection property: harmonic interference is not generated to the power grid; has no electromagnetic pollution to the environment. Intelligentization: the system is designed in a modular mode, and networking and non-networking are optional; and (5) controlling at different places. The use is convenient: the distribution lines of the users do not need to be modified. Safe and reliable: the electrical components are selected from known brands and have the functions of open-phase protection, overcurrent protection, undervoltage protection and the like. One-to-two can be realized, and the cost is reduced. And realizing soft start. The motor energy-saving device is suitable for central air-conditioning systems such as fans, pumps, compressors, belt conveyors and elevators, petrochemical systems, air compressor systems, boiler heat exchange systems, water systems, freezing and refrigerating systems and the like. The modern power optimization management of fluid pressure, flow and temperature, such as computer control and remote monitoring, is realized.

Specifically, in use, the parameter target of the automatic control is usually the refrigerant fluid outlet temperature, the medium pressure (e.g. oil pressure, water pressure, air pressure) or the medium level, etc. In any controlled parameter, after a target numerical parameter is given in engineering, the device can automatically adapt to the disturbance of the external environment to the parameter target, and continuously adjust the rotation number of the motor, so that the output of the physical parameters is unchanged. When the parameter exceeds the target value, for example, the pressure is high, the method of pressure relief is not adopted, but the method of reducing the number of revolutions of the motor is adopted to reduce the high pressure, so that the energy waste caused by pressure relief is saved. The motor can not be stopped and started frequently by tracking the output parameters all the time, thereby protecting the motor and saving the energy waste caused by frequent starting.

Examples

Referring to fig. 3, for example, the slurry pump 17 inputs medium liquid to the high-level sump 19 for coal washing, the overflow pipe 18 is connected to the high-level sump 19, the input flow is far greater than the output flow, generally the overflow amount reaches one third or even half, and the equipment is used one by one. The equipment has problems in operation: at present, the overflow capacity of the equipment reaches one third, and sometimes exceeds one half; the constant pressure hopper often overflows to the ground due to blockage, which not only influences production, but also causes great waste; cyclones are often plugged, affecting the quality of the coal. The solution is as follows: installing the RIE industrial power saving device; the design is a one-to-two mode, the original control cabinet is kept as a bypass unit, and the RIE industrial power saving device and the bypass cabinet are interlocked;

the high-level water sump 19 is added with an ultrasonic liquid level sensor 20, so that energy-saving control is realized, and the overflow problem is solved; the constant pressure hopper is provided with an alarm device 3 to solve the overflow, and the cyclone is provided with a flow sensor to ensure the alarm after the blockage.

After the transformation is completed, the ultrasonic liquid level sensor 20 of the high-level water sump 19 sets three heights H1, H2 and H3, H1 > H2 > H3, H1 is lower than the overflow liquid level, H2 is a target parameter, H1 is a high-level parameter, and H3 is a low-level parameter. The liquid level is basically stabilized around H2 by the RIE industrial power-saving device at ordinary times, the flow is automatically reduced when the liquid level is higher than H2, the flow is increased when the liquid level is lower than H2, the equipment stops running but is not stopped when the liquid level is higher than H1, and the flow is increased to the maximum when the liquid level is lower than H3. Thus, energy-saving control can be realized, and the overflow problem can be solved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An RIE industrial power saving device comprises a mainboard, and is characterized in that the mainboard is provided with an input end (10) of a power supply and an output end (11) for connecting a motor load (8), the mainboard is provided with a PLC module (1), a frequency conversion module (2) electrically connected with the PLC module (1) through a mainboard circuit, an alarm device (3), a filter (4) and a plurality of sensors (16), and the plurality of sensors (16) are distributed on control nodes of industrial production;

the channel conductor of the filter (4) is electrically connected with a circuit breaker (5), and the circuit breaker (5) is connected to the input end (10);

the frequency conversion module (2) is electrically connected with a filtering reactance module (6) through a mainboard circuit, the filtering reactance module (6) is electrically connected with a plurality of contactors (7) through data lines, and the contactors (7) are connected to a motor load (8) through the output end (11);

the contactor (7) is also connected to a bypass unit (9).

2. A RIE industrial power saving device according to claim 1, wherein the PLC module (1) is a programmable controller, and the PLC module (1) has a PID adjusting module built therein.

3. A RIE power saving device according to claim 1, wherein the sensor (16) is one or more of a force sensor, a position sensor, a liquid level sensor, an energy consumption sensor, a speed sensor, an acceleration sensor, a radiation sensor and a thermal sensor.

4. The RIE industrial power saving device according to claim 1, wherein the motherboard is further provided with an RS485 communication interface (12) for network connection, and a network communication module (13) connected to the RS485 communication interface (12), and the network communication module (13) is electrically and data-connected to the PLC module (1).

5. An RIE industrial power saving device according to claim 1, wherein the PLC module (1) is further connected to a control panel via a motherboard circuit, and the control panel is provided with a display screen (14) and a keyboard (15).

6. A RIE industrial power saving device according to claim 1, wherein the alarm device (3) is one or a combination of visual alarm, audible alarm and olfactory alarm.