CN217539082U - Intelligent control device for axial flow fan of power room of cement plant - Google Patents
Intelligent control device for axial flow fan of power room of cement plant Download PDFInfo
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- CN217539082U CN217539082U CN202221665258.XU CN202221665258U CN217539082U CN 217539082 U CN217539082 U CN 217539082U CN 202221665258 U CN202221665258 U CN 202221665258U CN 217539082 U CN217539082 U CN 217539082U
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Abstract
The utility model discloses an intelligent control device for an axial flow fan in a power room of a cement plant, which comprises a temperature controller and a relay K1, wherein the output end of the temperature controller is connected to a coil of the relay K1 and is used for driving the on-off of the relay K1 according to the temperature; a normally open contact of the relay K11 is connected in series in a control loop of the contactor KM and used for controlling the on-off of a coil of the contactor KM; and a normally open contact KM1 of the contactor KM is connected in series in a power supply loop of the axial flow fan. The utility model has the advantages of: the automatic temperature control axial flow fan has the advantages that the structure is simple, the realization is convenient, the operation of the automatic temperature control axial flow fan and the operation of the manual control axial flow fan can be provided, the control is more accurate and reliable, the automation degree is high, and meanwhile, the selective manual control is provided; automatic control can realize energy saving and avoid the axial flow fan working all the time corresponding to energy consumption and waste. The technology is divided into two control modes of manual control and automatic control, and the automatic control adopts temperature control.
Description
Technical Field
The utility model relates to a cement plant intelligent control field, in particular to cement plant electric power room axial fan intelligent control device.
Background
In order to meet the requirement that the temperature of air around an electric power room of a production line of a cement plant is not higher than 35 ℃, an axial flow fan is installed to ventilate and cool the electric power room, the electric power room is unattended, the axial flow fan is started for 24 hours, a large amount of electric energy is wasted, and carbon emission control is not facilitated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a cement plant electric power room axial fan intelligent control device, control axial fan's work through automatic control's mode.
In order to achieve the purpose, the invention adopts the technical scheme that: an intelligent control device for an axial flow fan of a power room of a cement plant comprises a temperature controller and a relay K1, wherein the output end of the temperature controller is connected to a coil of the relay K1 and used for driving the relay K1 to be powered on or powered off according to the temperature; a normally open contact of the relay K11 is connected in series in a control loop of the contactor KM and used for controlling the on-off of a coil of the contactor KM; and a normally open contact KM1 of the contactor KM is connected in series in a power supply loop of the axial flow fan.
The device also comprises a disconnection indicating lamp, wherein the disconnection indicating lamp is connected with the normally closed contact KM2 of the contactor in parallel and then is connected to the positive and negative ends of the power supply.
The device also comprises a closed indicator light, and the closed indicator light is connected with a normally open contact KM3 of the contactor in series and then is connected with the positive electrode and the negative electrode of the power supply.
The device also comprises a power indicator light, and two ends of the power indicator light are respectively connected to the positive electrode and the negative electrode of the power supply.
The device also comprises a change-over switch SA and a manual control loop, wherein one end of the change-over switch SA is connected with the power supply, the other end of the change-over switch SA is respectively connected with the temperature controller and the manual control loop, and the change-over switch SA is used for switching the power supply to be connected with the temperature controller or the manual control loop.
The manual control loop comprises a button S2 and a button S1, wherein the button S1 is an emergency stop button, the button S2 is a start button, one end of the button S2 is connected with a change-over switch SA, the other end of the button S2 is connected to one end of a contactor KM through the button S1, and the other end of the contactor KM is grounded or powered; wherein, both ends of the button S2 are connected in parallel with a normally open contact KM4 of the contactor KM.
The temperature controller is provided with a plurality of output terminals for controlling a plurality of relays K1, each relay K1 correspondingly drives and controls one contactor KM, and each contactor KM is used for controlling the on-off of one axial flow fan.
The temperature controller comprises a temperature sensor and a control unit, the temperature sensor is used for collecting temperature data of a site, the output end of the temperature sensor is connected with the control unit, the control unit controls a driving signal output by the output end of the control unit based on the temperature data, and the output end of the control unit is connected to a coil of the relay K1.
The utility model has the advantages that: the automatic temperature control axial flow fan and the control method thereof have the advantages that the structure is simple, the realization is convenient, the operation of the automatic temperature control axial flow fan and the operation of the manual control axial flow fan can be provided, the control is more accurate and reliable, the automation degree is high, and meanwhile, the selective manual control is provided; automatic control can realize energy saving and avoid the axial flow fan working all the time corresponding to energy consumption and waste. The technology is divided into a manual control mode and an automatic control mode, and the automatic control adopts temperature control. The control mode can be flexibly switched through the change-over switch, and is similar to the control mode of cement factory equipment, so that the operation of technicians is facilitated. The safety and the convenience of the operation are improved, the energy-saving effect is also achieved, the automatic function is embodied in the aspect of operation management, and the popularization prospect is good.
Drawings
The contents of the expressions in the various figures of the present specification and the labels in the figures are briefly described as follows:
fig. 1 is a schematic diagram of the control device of the present invention.
Detailed Description
The following description of preferred embodiments of the invention will be made in further detail with reference to the accompanying drawings.
This application is based on solving the characteristics that traditional mill's electric power room axial fan opened throughout the day, utilizes advanced reliable controlling means and principle, realizes that electric power indoor axial fan opens and closes and can further upgrade to opening according to the temperature in turn according to the indoor temperature, opens automatically and stops, provides the optional manual control simultaneously and opens and close, improves its simple operation nature and stability. The specific scheme is as follows:
as shown in fig. 1, the intelligent control device for the axial flow fans in the power room of the cement plant comprises a temperature controller and one or more relays K1, wherein the number of the relays K1 is consistent with that of the axial flow fans, so that one-to-one control is realized.
The temperature controller is provided with a plurality of output interfaces, each output interface can drive and control the on-off of a coil of one relay K1, as shown in figure 1, the principle of the temperature controller is shown by one relay K1, and the output end of the temperature controller is connected to the coil of the relay K1 and used for driving the on-off of the relay K1 according to the temperature; a normally open contact of the relay K11 is connected in series in a control loop of the contactor KM and used for controlling the on-off of a coil of the contactor KM; and a normally open contact KM1 of the contactor KM is connected in series in a power supply loop of the axial flow fan. The temperature controller controls the corresponding coil of the relay K1 to be powered on or powered off according to different temperatures, the corresponding coil of the contactor KM is powered on or powered off, and the axial flow fan is powered on or powered off, so that the work of the axial flow fan is realized.
In another embodiment of the present application, the temperature controller has a plurality of output terminals for controlling a plurality of relays K1, each relay K1 drives and controls one contactor KM, and each contactor KM is used for controlling the on/off of one axial flow fan. The axial flow fans are multiple, different axial flow fans are adopted to work when the temperatures are different, the axial flow fans correspondingly comprise a plurality of contactors, each contactor is connected in series in a power supply loop of one corresponding axial flow fan, and each contactor is correspondingly controlled by one power saver K1. The output end of the temperature controller is used for correspondingly driving the K1 corresponding to the axial flow fans so as to drive the corresponding contactor KM. Taking 12 axial flow fans configured in one power room as an example, normally, 4 axial flow fans can be started at an indoor temperature of more than 25 degrees, 8 axial flow fans can be started at an indoor temperature of more than 30 degrees, and 12 axial flow fans can be started at an indoor temperature of more than 35 degrees. The temperature controller can judge the number of the electrified driving relays K1 according to the temperature acquired in real time, so that the detected temperature is greater than 25 degrees, and the temperature controller drives the corresponding relays K1 of the four axial flow fans to be electrified.
The application also provides a plurality of indicator lamps, which comprise an open indicator lamp, a closed indicator lamp and a power indicator lamp, wherein the open indicator lamp and the closed indicator lamp respectively adopt a red indicator lamp and a green indicator lamp and are used for respectively indicating the closing state and the starting state of the axial flow fan; the power indicator lamp is used for indicating whether the power supply of the device is normal or not, and a white indicator lamp is used. The power supply is used for providing basic power supply for each relay, each contactor and each temperature controller in the device.
The power supply principle is as follows: the disconnection indicating lamp is connected with a normally closed contact KM2 of the contactor in parallel and then is connected to the two ends of the anode and the cathode of the power supply. And the closed indicator lamp is connected with a normally open contact KM3 of the contactor in series and then is connected with the anode and the cathode of the power supply. Two ends of the power indicator light are respectively connected to the positive electrode and the negative electrode of the power supply. When the power supply is normal, the white indicator light is lightened for indicating the power supply state; when the coil of the contactor KM is electrified, the KM1 is closed to enable the axial flow fan to be electrified and work, and meanwhile, the normally closed contact KM2 is disconnected, so that the disconnection indicating lamp is not on; the normally open contact KM3 is closed, so that the closed indicator lamp is lightened, and the axial flow fan is indicated to be in a working state by emitting green light.
In a preferred embodiment of the present application, a manual and automatic switching control function is provided, and specifically includes a switch SA and a manual control loop, wherein one end of the switch SA is connected to the power supply, and the other end of the switch SA is connected to the temperature controller and the manual control loop, respectively, and the switch SA is used for switching the power supply to the temperature controller or the manual control loop.
The manual control loop comprises a button S2 and a button S1, wherein the button S1 is an emergency stop button, the button S2 is a start button, one end of the button S2 is connected with a change-over switch SA, the other end of the button S2 is connected to one end of a contactor KM through the button S1, and the other end of the contactor KM is grounded or powered negatively; wherein, both ends of the button S2 are connected with a normally open contact KM4 of the contactor KM in parallel.
The change-over switch SA is used for switching a power supply to supply power for the temperature controller or manually control a loop to supply power or switching to a function stop state, and is realized by adopting an LW12-16Z switch, when the change-over switch is switched to the temperature controller, the power supply is connected to the temperature controller, the power supply of the temperature controller is electrified to work, and the relay K1 is driven to work according to the data of the temperature sensor; otherwise, the manual control loop is switched to, and the starting and the closing are realized through a starting button S1, wherein S2 is a normally open switch and belongs to a starting switch, and S1 is a normally closed switch and belongs to an emergency stop switch. When the manual mode is switched, the S2 is closed, the KM coil is electrified, the KM normally open contact KM4 can realize the function of sub-holding, and the axial flow fan is electrified to work; if working conditions such as emergency stop or maintenance are needed, the S1 can be directly disconnected, so that the KM is powered off.
In this application, temperature controller includes temperature sensor and the control unit, and temperature sensor is used for gathering on-the-spot temperature data, and its output connection control unit, control unit adopt common controller to realize, and this application adopts 51 series of singlechips with low costs to realize, and the control unit controls the drive signal of its output port output based on temperature data, and its output is connected to relay K1's coil. And the coil of the relay K1 is driven to be powered on and powered off through an IO port of the 51 single chip microcomputer.
As shown in fig. 1, the positive power supply of the present application is connected to the input terminal of the transfer switch SA through the fuse FU, and the output terminal of the transfer switch SA is connected to the positive power supply of the temperature controller and one end of the button S2 in the manual loop, respectively; the negative pole of the temperature controller power is grounded or the power supply is negative, the temperature controller works after being electrified, and the output port of the temperature controller is connected to the coil of the relay K1 and used for outputting a driving signal to drive the coil of the relay K1 to be powered on and powered off. The button S2 belongs to a normally open button and is used for achieving the purpose of manual starting, one end of the button S2 is connected to the SA, the other end of the button S1 is connected to one end of the KM coil through the emergency stop button, and the other end of the KM coil is grounded or powered; and both S1 and S2 adopt LA38-11-209 switches. And a normally open contact KM4 of the contactor KM is connected in parallel at two ends of the S2 to form a self-holding loop. And a loop leading-out terminal between the KM coil and the S1 is connected with the positive electrode of the power supply through a fuse FU.
The positive pole of the power supply is grounded or the negative pole of the power supply through a white indicator light HW and is used for indicating the state of the power supply; the positive electrode of the power supply is connected to a normally closed contact KM2 of the contactor KM after passing through the fuse FU, and the other end of the KM2 is grounded or powered negatively through a red indicator lamp HR; the positive pole of the power supply is connected to a normally open contact KM3 through a fuse FU, and the other end of KM3 is grounded or negative through a green indicator lamp.
The AC power supply is connected with the axial flow fan through a low-voltage circuit breaker Q1 to form a power supply loop of the axial flow fan, and a normally open contact KM1 of the contactor KM is connected in series in the power supply loop of the axial flow fan; thereby controlling whether the axial flow fan is powered or not. A thermal overload relay is connected in series in a power supply loop to prevent the thermal overload of the axial flow fan.
The theory of operation of this application includes, when SA switches to when automatic, temperature controller judges the temperature this moment based on temperature acquisition and drives relay K1 based on the temperature, when the temperature satisfies axial fan and starts, temperature controller output drive relay K1 circular telegram, corresponding K11 is closed, the KM coil circular telegram, the KM1 is closed, axial fan M circular telegram work, KM2 disconnection this moment, red pilot lamp is bad, the KM3 is closed, green pilot lamp is bright has realized that red and green pilot lamp gives axial fan operating condition's instruction. When the temperature controller drives the K1 to be powered off, the KM1 is disconnected, the axial flow fan stops working, and the corresponding indicator lamp gives an indication state.
When the manual mode is switched, the KM coil is electrified by pressing the S2, the KM1 is closed, the axial flow fan M is electrified to work, the KM2 is disconnected, the red indicator lamp is poor, the KM3 is closed, and the green indicator lamp is on, so that the red indicator lamp and the green indicator lamp give out indication of the working state of the axial flow fan. Meanwhile, as the KM coil is electrified and the KM4 is closed, self-holding is realized, namely the axial flow fan can work all the time after the S2 is pressed down, and a loop can be disconnected through the S1 when the system needs to be stopped, so that the KM coil is powered off.
The application is divided into a manual control mode and an automatic control mode, and the automatic control adopts temperature control. The control mode can be flexibly switched through the change-over switch, and is similar to the control mode of cement factory equipment, so that the operation of technicians is facilitated.
The change-over switch SA is adjusted to be 'Loca l/field', so that manual control can be realized.
(1) Under the control mode, the local starting function can be realized through a button S2 in the lighting box, and the local starting function is maintained through a self-locking KM contactor; then, the in-situ stop function is realized through a button S1 in the control box;
all control is gone on through operating button above, the electric shock risk of bringing when having avoided operating the circuit breaker.
4.2 automatic control mode
The automatic temperature control can be realized by adjusting the change-over switch S1 to a 'temperature controller'.
The idea of automatic control is explained from another aspect by switching to the temperature control operation, and meanwhile, the operation of field arrangement personnel is not needed any more, and the arrangement aspect of human resources is released to a certain extent.
4.3 stop position
The change-over switch S1 is adjusted to Stop, so that the power of the axial flow fan can be cut off in the overhauling process, and the electric shock of an overhauling person caused by misoperation during overhauling of people is avoided.
After the scheme is implemented, the safety and the convenience of operation are improved, positive significance is brought to the energy-saving aspect, the automatic function is embodied in operation management, and the popularization prospect is good.
It is clear that the specific implementation of the invention is not restricted to the above-described embodiments, but that various insubstantial modifications of the inventive process concept and technical solutions are within the scope of protection of the invention.
Claims (8)
1. The utility model provides a cement plant electric power room axial fan intelligent control device which characterized in that: the temperature control circuit comprises a temperature controller and a relay K1, wherein the output end of the temperature controller is connected to a coil of the relay K1 and used for driving the relay K1 to be powered on or powered off according to the temperature; a normally open contact of the relay K1 is connected in series in a control loop of the contactor KM and used for controlling the on-off of a coil of the contactor KM; and a normally open contact KM1 of the contactor KM is connected in series in a power supply loop of the axial flow fan.
2. The intelligent control device for the axial flow fan of the power room of the cement plant as claimed in claim 1, wherein: the device also comprises a disconnection indicating lamp, wherein the disconnection indicating lamp is connected with the normally closed contact KM2 of the contactor in parallel and then is connected to the positive and negative ends of the power supply.
3. The intelligent control device for the axial flow fan of the power room of the cement plant as claimed in claim 1, wherein: the device also comprises a closed indicator light, and the closed indicator light is connected with a normally open contact KM3 of the contactor in series and then is connected with the positive electrode and the negative electrode of the power supply.
4. The intelligent control device for the axial flow fan of the power room of the cement plant as claimed in claim 1, wherein: the device still includes power indicator, power indicator both ends are connected to the positive negative pole of power respectively.
5. The intelligent control device for the axial flow fan of the electric power room of the cement plant as defined in any one of claims 1 to 4, characterized in that: the device also comprises a change-over switch SA and a manual control loop, wherein one end of the change-over switch SA is connected with the power supply, the other end of the change-over switch SA is respectively connected with the temperature controller and the manual control loop, and the change-over switch SA is used for switching the power supply to be connected with the temperature controller or the manual control loop.
6. The intelligent control device for the axial flow fan of the power room of the cement plant as claimed in claim 5, wherein: the manual control loop comprises a button S2 and a button S1, wherein the button S1 is an emergency stop button, the button S2 is a start button, one end of the button S2 is connected with a change-over switch SA, the other end of the button S2 is connected to one end of a contactor KM through the button S1, and the other end of the contactor KM is grounded or powered negatively; wherein, both ends of the button S2 are connected in parallel with a normally open contact KM4 of the contactor KM.
7. The intelligent control device for the axial flow fan of the power room of the cement plant as claimed in claim 1, wherein: the temperature controller is provided with a plurality of output terminals for controlling a plurality of relays K1, each relay K1 correspondingly drives and controls one contactor KM, and each contactor KM is used for controlling the on-off of one axial flow fan.
8. The intelligent control device for the axial flow fan in the electric power room of the cement plant as defined in claim 1 or 7, characterized in that: the temperature controller comprises a temperature sensor and a control unit, the temperature sensor is used for collecting on-site temperature data, the output end of the temperature sensor is connected with the control unit, the control unit controls a driving signal output by the output port of the control unit based on the temperature data, and the output end of the control unit is connected to a coil of the relay K1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221665258.XU CN217539082U (en) | 2022-06-29 | 2022-06-29 | Intelligent control device for axial flow fan of power room of cement plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221665258.XU CN217539082U (en) | 2022-06-29 | 2022-06-29 | Intelligent control device for axial flow fan of power room of cement plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217539082U true CN217539082U (en) | 2022-10-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221665258.XU Active CN217539082U (en) | 2022-06-29 | 2022-06-29 | Intelligent control device for axial flow fan of power room of cement plant |
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| Country | Link |
|---|---|
| CN (1) | CN217539082U (en) |
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- 2022-06-29 CN CN202221665258.XU patent/CN217539082U/en active Active
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