CN103775369B - Mining blower fan testing table housing - Google Patents
Mining blower fan testing table housing Download PDFInfo
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- CN103775369B CN103775369B CN201410049054.7A CN201410049054A CN103775369B CN 103775369 B CN103775369 B CN 103775369B CN 201410049054 A CN201410049054 A CN 201410049054A CN 103775369 B CN103775369 B CN 103775369B
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Abstract
This patent is mining blower fan testing table housing, control core is programmable logic controller (PLC), PLC used has two communication ports, one communication interface of PLC is electrically connected with the communication port of touch-screen, another communication interface of PLC is electrically connected with the communication port of computer, and the output port of PLC is electrically connected with forward and backward direction controlling port and the high, medium and low frequency setting port of frequency transformer I, frequency transformer II. Mining blower fan testing table housing, namely by housing, monitors again the running status of blower fan testing table by touch-screen and computer. Also can show service voltage respectively, and the running frequency of the tri-phase current of two motors, wattful power, motor.
Description
Technical field
The present invention relates to ore deposit testing table housing, particularly relate to mining blower fan testing table housing.
Background technology
Mining blower fan testing table is made up of a contra-rotating axial fan and ventilator, is used for carrying out mine ventilation test. Blower fan is the propeller fan of two-stage, has two motors, and an impeller is contained in after another impeller, and turning to of these two impellers is opposite each other. Two motors that mining blower fan testing table housing realizes contra-rotating axial fan open/stop heavy-current control, and when the load decreases, air quantity to be reduced, and realizes the reduction of air quantity by variable frequency adjustment approach. By variable frequency adjustment, realizing the control to each motor respectively, reaching two motor rotating speeds can be asynchronous.
Mining blower fan testing table housing needs to operate the opening/stop and speed class control of forward and backward of these two motors, also can show service voltage and the running frequency of the tri-phase current of above-mentioned two motors, wattful power, motor respectively.
Meanwhile, also the opening/stop and speed control of forward and backward by these two motors of touch screen operation on housing, the forward and backward of display two motors is run direction, wind-force direction, speed class by touch-screen.
Separately there is a computer to be connected with housing, this computer shows service voltage, the tri-phase current of two motors, wattful power. Also by the opening/stop and control with high, medium and low speed of forward and backward of these two motors of computer operation, the forward and backward of display two motors is run direction, wind-force direction, speed class by computer.
Use touch-screen and computer can directly monitor and store, print relevant operation conditions, testing data etc., and complete the data processing such as the analysis of operation conditions and testing data, calculating, conclusion, statistics.
Summary of the invention
For achieving the above object, the present invention provides a kind of mining blower fan testing table housing, housing can operate the opening/stop and speed class control of forward and backward of these two motors, also can show service voltage respectively, the running frequency of the tri-phase current of above-mentioned two motors, wattful power, motor.
Meanwhile, also the opening/stop and speed control of forward and backward by these two motors of touch screen operation on housing, the forward and backward of display two motors is run direction, wind-force direction, speed class by touch-screen.
Separately there is a computer to be connected with housing, this computer shows service voltage, the tri-phase current of two motors, wattful power. Also by the opening/stop and speed control of forward and backward of these two motors of computer operation, the forward and backward of display two motors is run direction, wind-force direction, speed class by computer. Use touch-screen and computer can directly monitor and store, print relevant operation conditions, testing data etc., and complete the data processing such as the analysis of operation conditions and testing data, calculating, conclusion, statistics.
The technical scheme that a kind of mining blower fan testing table housing of the present invention adopts is:
Mining blower fan testing table housing control core is programmable controller PLC, PLC used has two communication ports, one communication port of PLC is electrically connected with the communication port of touch-screen, another communication port of PLC is electrically connected with the communication port of computer, and the output port of PLC is electrically connected with forward and backward direction controlling port and the high, medium and low frequency setting port of frequency transformer I, frequency transformer II.
Adopt PLC as mining blower fan testing table housing control core, make housing have reliability height, multiple functional, it may also be useful to the features such as convenience.
PLC used has two communication ports, and a communication port of PLC is electrically connected with the communication port of touch-screen, is realized the data exchange of PLC and touch-screen by this PORT COM. By operation on the touchscreen, controlling two frequency transformers through PLC, and then control two electric motor, simultaneously the information such as the operation direction of two electric motor, speed class is also shown on touch-screen. Another communication port of PLC is electrically connected with the communication port of computer, is realized the data exchange of PLC and computer by this PORT COM. By operation on computers, controlling two frequency transformers through PLC, and then control two electric motor, simultaneously the information such as the operation direction of two electric motor, speed class is also shown on computer display screen. Use touch-screen and computer can directly monitor and store, print relevant operation conditions, testing data etc., and complete the data processing such as the analysis of operation conditions and testing data, calculating, conclusion, statistics.
The output port of PLC is electrically connected with forward and backward direction controlling port and the high, medium and low running frequency port of frequency transformer I, frequency transformer II. By the connecting and disconnecting of control PLC output port, the forward and backward direction of control frequency transformer I, frequency transformer II and high, medium and low running frequency, and then control two electric motor. The voltage of the output port of control PLC is divided into two groups, and one group of voltage of supply takes from the direct current 24V voltage on frequency transformer I, the forward and backward direction of control frequency transformer I and high, medium and low frequency setting; Another group voltage of supply takes from the direct current 24V voltage on frequency transformer II, the forward and backward direction of control frequency transformer II and high, medium and low frequency setting. By the setting on frequency transformer I and frequency transformer II, set high, medium and low frequency, it is achieved the adjustment of motor operating speed and change.
Mining blower fan testing table housing operating panel is equipped with housing power start button, housing power-off stop button, the rotating forward button I of electric motor I, stop button I, invert button I, high speed button I, middling speed button I, low speed button I, the rotating forward button II of electric motor II, stop button II, invert button II, high speed button II, middling speed button II, low speed button II.
Mining blower fan testing table housing operating panel is equipped with housing power start button, housing power-off stop button, by operation power button and cut-off button, control switching on and off of alternating current contactor, thus the power supply controlled in main control cabinet switches on and off.
The rotating forward button I of electric motor I, stop button I, invert button I are housed on mining blower fan testing table housing operating panel, and the rotating forward being controlled electric motor I by above-mentioned button respectively is started, stops and reverse starting. Mining blower fan testing table housing operating panel is equipped with the high speed button I of electric motor I, middling speed button I, low speed button I, the running frequency of electric motor I is controlled respectively by above-mentioned button, and then the travelling speed of control electric motor I, it is achieved the change of electric motor I running speed.
The rotating forward button II of electric motor II, stop button II, invert button II are housed on mining blower fan testing table housing operating panel, and the rotating forward being controlled electric motor II by above-mentioned button respectively is started, stops and reverse starting. Mining blower fan testing table housing operating panel is equipped with the high speed button II of electric motor II, middling speed button II, low speed button II, the running frequency of electric motor II is controlled respectively by above-mentioned button, and then the travelling speed of control electric motor II, it is achieved the change of electric motor II running speed.
The input port of PLC is electrically connected with the rotating forward button I of the electric motor I on housing, stop button I, invert button I, high speed button I, middling speed button I, low speed button I respectively, and the input port of PLC is also electrically connected with the rotating forward button II of electric motor II, stop button II, invert button II, high speed button II, middling speed button II, low speed button II respectively.
Button is operated by the rotating forward button I of the electric motor I that operates on housing, stop button I, invert button I, high speed button I, middling speed button I, low speed button I, and the rotating forward button II of electric motor II, stop button II, invert button II, high speed button II, middling speed button II, low speed button II operate button, through the connecting and disconnecting of the output port of PLC control PLC, control two frequency transformers, and then control two electric motor.
Primary source is electrically connected through the power input of 220V alternating current contactor with the power input and frequency transformer II with frequency transformer I.
When 220V alternating current contactor is connected, the power input that primary source passes through the main contact of alternating current contactor and the power input of frequency transformer I and frequency transformer II is connected. When 220V alternating current contactor disconnects, the power input that primary source passes through the main contact of alternating current contactor and the power input of frequency transformer I and frequency transformer II disconnects.
Housing is provided with digital intelligent voltmeter, digital intelligent tri-phase current table I, digital intelligent tri-phase current table II, Digital and Intelligent Dynamometer I, Digital and Intelligent Dynamometer II; The RS485 communication joint of digital intelligent voltmeter, digital intelligent tri-phase current table I, digital intelligent tri-phase current table II, Digital and Intelligent Dynamometer I, Digital and Intelligent Dynamometer II is electrically connected with RS485 RS 232 X-over respectively, turn USB X-over again to be electrically connected with RS232, finally it is electrically connected with the USB port of computer.
A digital intelligent voltage table is used for measuring main power voltage, digital intelligent tri-phase current table I, digital intelligent tri-phase current table II are used for measuring three single-phase currents of electric motor I and electric motor II respectively, and Digital and Intelligent Dynamometer I, Digital and Intelligent Dynamometer II are used for measuring the power of electric motor I and electric motor II respectively.
By arranging different equipment addresses, above-mentioned numerical value is exported respectively. Its above-mentioned numerical value exports as RS485 signal, is passed through RS485 RS 232 X-over, is converted to RS232 signal, then turn USB X-over through RS232, be converted to usb signal so that it is be connected with the USB interface of computer, it is achieved the transmission of data.
Signal output terminal one end of digital intelligent voltmeter is electrically connected with a live wire of primary source, and the other end is electrically connected with the zero line of primary source; On three power supply output lines of frequency transformer I, cover has three current transformers respectively, the output signal of these three current transformers is electrically connected with digital intelligent tri-phase current table I, and wherein the output signal of two current transformers is electrically connected with Digital and Intelligent Dynamometer I; On three power supply output lines of frequency transformer II, cover has three current transformers respectively, the output signal of these three current transformers is electrically connected with digital intelligent tri-phase current table II, and wherein the output signal of two current transformers is electrically connected with Digital and Intelligent Dynamometer II;
Digital intelligent voltmeter measurement signal takes from main power voltage; The measurement signal of digital intelligent tri-phase current table I and digital intelligent tri-phase current table II is taken from three power supply output lines of frequency transformer I and frequency transformer II, also being in three power supply input lines of electric motor I and electric motor II, wherein three current transformers on digital intelligent tri-phase current table I have two current transformers and Digital and Intelligent Dynamometer I to share; Three current transformers on same digital intelligent tri-phase current table II have two current transformers and Digital and Intelligent Dynamometer II to share.
The forward and backward of the output port of PLC and frequency transformer I, frequency transformer II is serially connected with DC24V pilot lamp respectively between control port and high, medium and low frequency setting port.
The forward and backward of the output port of PLC and frequency transformer I, frequency transformer II is serially connected with DC24V pilot lamp respectively between control port and high, medium and low frequency setting port. Above-mentioned pilot lamp is arranged on housing, and the DC24V voltage of pilot lamp takes from the frequency transformer of each indicator signal respectively, makes operator know the operation conditions of two electric motor by above-mentioned pilot lamp.
A main power circuit one live wire alternating current 220V pilot lamp in parallel with between zero line, a contactor output port alternating current 220V pilot lamp in parallel with between zero line, one output port of a frequency transformer I alternating current 220V pilot lamp in parallel with between zero line, an output port of a frequency transformer II alternating current 220V pilot lamp in parallel with between zero line.
A main power circuit one live wire alternating current 220V pilot lamp in parallel with between zero line, is used to refer to whether primary source has electricity. A contactor output port alternating current 220V pilot lamp in parallel with between zero line, is used to refer to whether this alternating current contactor is connected, and indicates whether the power input of frequency transformer I and frequency transformer II has electricity simultaneously.
One output port of a frequency transformer I alternating current 220V pilot lamp in parallel with between zero line, whether the power output end being used to refer to frequency transformer I has electricity. One output port of a frequency transformer II alternating current 220V pilot lamp in parallel with between zero line, whether the power output end being used to refer to frequency transformer II has electricity.
The electric motor I and the electric motor II that are controlled are flame-proof mine asynchronous motor.
The electric motor I and the electric motor II that are controlled are flame-proof mine asynchronous motor, meet mine explosion-suppression safety requirements, and motor speed realizes by changing the supply frequency of drive motor. Motor speed and supply frequency are closed and are: n=60f/p, in upper formula, n is motor speed, and f is supply frequency, and p is electric electromechanics magnetic pole logarithm.
The invention has the beneficial effects as follows: mining blower fan testing table housing, namely by housing, the running status of blower fan testing table is monitored again by touch-screen and computer, the forward and backward comprising two motors opens/stops, and the change of the running speed of this two motors and control, and can Real Time Observation to the tri-phase current of the voltage of power supply, this two motors and wattful power.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the electrical schematic diagram of the mining blower fan testing table housing of the present invention.
Fig. 2 is the operating panel figure of the mining blower fan testing table housing of the present invention.
Fig. 3 is the main interface of the touch-screen of the present invention's mining blower fan testing table housing.
Fig. 4 is the main interface of the computer of the present invention's mining blower fan testing table housing.
Embodiment
In FIG, PLC used is the S7-200226CN type PLC that Siemens Company of Germany produces, and frequency transformer is similarly the MICROMASTER430 type frequency transformer that Siemens Company of Germany produces, and this frequency transformer is pump and fan Special frequency converter. Touch-screen is 10.1 cun of eView touch-screens that Shanghai Bu Ke company produces, and model is MT4512T.
Digital intelligent instrument used is that China Huaian electrically produces, digital intelligent line meter model is HD-V1-96B-R-V800 type, digital intelligent tri-phase current table I and II model are HD-A3-96D-R-A5, and Digital and Intelligent Dynamometer I and II model is HD-P4-96B-R-A5-V380 (three-phase and four-line).
Current transformer model used is SDH-0.2BH-0.66/30 rated transformation ratio is the mutual inductor of 20/5.
SIEMENS PLC 226CN type used has two RS485 communication ports, the one RS485 communication port of PLC is electrically connected with the communication port COM1 of touch-screen, another RS485 communication port of PLC, through RS485 RS 232 X-over, being electrically connected with the RS232 communication port COM1 of computer, the output port of PLC is electrically connected with forward and backward direction controlling port and the high, medium and low frequency setting port of frequency transformer I, frequency transformer II.
Mining blower fan testing table housing operating panel is equipped with housing power start button, housing power-off stop button, the rotating forward button I of electric motor I, stop button I, invert button I, high speed button I, middling speed button I, low speed button I, the rotating forward button II of electric motor II, stop button II, invert button II, high speed button II, middling speed button II, low speed button II.
The input port of PLC is electrically connected with the rotating forward button I of the electric motor I on housing, stop button I, invert button I, high speed button I, middling speed button I, low speed button I respectively, and the input port of PLC is also electrically connected with the rotating forward button II of electric motor II, stop button II, invert button II, high speed button II, middling speed button II, low speed button II respectively.
Primary source is electrically connected with the power input of frequency transformer I and the power input of frequency transformer II through 220V alternating current contactor.
Housing is provided with digital intelligent voltmeter, digital intelligent tri-phase current table I, digital intelligent tri-phase current table II, Digital and Intelligent Dynamometer I, Digital and Intelligent Dynamometer II; The RS485 communication joint of digital intelligent voltmeter, digital intelligent tri-phase current table I, digital intelligent tri-phase current table II, Digital and Intelligent Dynamometer I, Digital and Intelligent Dynamometer II is electrically connected with RS485 RS 232 X-over respectively, turn USB X-over again to be electrically connected with RS232, finally it is electrically connected with the USB port of computer.
Signal output terminal one end of digital intelligent voltmeter is electrically connected with a live wire of primary source, and the other end is electrically connected with the zero line of primary source; On three power supply output lines of frequency transformer I, cover has three current transformers respectively, the output signal of these three current transformers is electrically connected with digital intelligent tri-phase current table I, and wherein the output signal of two current transformers is electrically connected with Digital and Intelligent Dynamometer I; On three power supply output lines of frequency transformer II, cover has three current transformers respectively, the output signal of these three current transformers is electrically connected with digital intelligent tri-phase current table II, and wherein the output signal of two current transformers is electrically connected with Digital and Intelligent Dynamometer II;
The forward and backward of the output port of PLC and frequency transformer I, frequency transformer II is serially connected with DC24V pilot lamp respectively between control port and high, medium and low frequency setting port.
A main power circuit one live wire alternating current 220V pilot lamp in parallel with between zero line, a contactor output port alternating current 220V pilot lamp in parallel with between zero line, one output port of a frequency transformer I alternating current 220V pilot lamp in parallel with between zero line, an output port of a frequency transformer II alternating current 220V pilot lamp in parallel with between zero line.
The electric motor I and the electric motor II that are controlled are flame-proof mine asynchronous motor.
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those of ordinary skill in the art are in the technical scope disclosed by the present invention; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention. Therefore, protection scope of the present invention should be as the criterion with the protection domain that claim book limits.
Claims (1)
1. a mining blower fan testing table housing, is characterized in that:
Mining blower fan testing table housing control core is programmable controller PLC, PLC used has two communication ports, one communication port of PLC is electrically connected with the communication port of touch-screen, another communication port of PLC is electrically connected with the communication port of computer, and the output port of PLC is electrically connected with forward and backward direction controlling port and the high, medium and low frequency setting port of frequency transformer I, frequency transformer II;
Mining blower fan testing table housing operating panel is equipped with housing power start button, housing power-off stop button, the rotating forward button I of electric motor I, stop button I, invert button I, high speed button I, middling speed button I, low speed button I, the rotating forward button II of electric motor II, stop button II, invert button II, high speed button II, middling speed button II, low speed button II;
The input port of PLC is electrically connected with the rotating forward button I of the electric motor I on housing, stop button I, invert button I, high speed button I, middling speed button I, low speed button I respectively, and the input port of PLC is also electrically connected with the rotating forward button II of electric motor II, stop button II, invert button II, high speed button II, middling speed button II, low speed button II respectively;
Primary source is electrically connected with the power input of frequency transformer I and the power input of frequency transformer II through 220V alternating current contactor;
Housing is provided with digital intelligent voltmeter, digital intelligent tri-phase current table I, digital intelligent tri-phase current table II, Digital and Intelligent Dynamometer I, Digital and Intelligent Dynamometer II; The RS485 communication joint of digital intelligent voltmeter, digital intelligent tri-phase current table I, digital intelligent tri-phase current table II, Digital and Intelligent Dynamometer I, Digital and Intelligent Dynamometer II is electrically connected with RS485 RS 232 X-over respectively, turn USB X-over again to be electrically connected with RS232, finally it is electrically connected with the USB port of computer;
Signal output terminal one end of digital intelligent voltmeter is electrically connected with a live wire of primary source, and the other end is electrically connected with the zero line of primary source; On three power supply output lines of frequency transformer I, cover has three current transformers respectively, the output signal of these three current transformers is electrically connected with digital intelligent tri-phase current table I, and wherein the output signal of two current transformers is electrically connected with Digital and Intelligent Dynamometer I; On three power supply output lines of frequency transformer II, cover has three current transformers respectively, the output signal of these three current transformers is electrically connected with digital intelligent tri-phase current table II, and wherein the output signal of two current transformers is electrically connected with Digital and Intelligent Dynamometer II;
The forward and backward of the output port of PLC and frequency transformer I, frequency transformer II is serially connected with DC24V pilot lamp respectively between control port and high, medium and low frequency setting port;
A main power circuit one live wire alternating current 220V pilot lamp in parallel with between zero line, a contactor output port alternating current 220V pilot lamp in parallel with between zero line, one output port of a frequency transformer I alternating current 220V pilot lamp in parallel with between zero line, an output port of a frequency transformer II alternating current 220V pilot lamp in parallel with between zero line;
The electric motor I and the electric motor II that are controlled are flame-proof mine asynchronous motor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410049054.7A CN103775369B (en) | 2014-02-12 | 2014-02-12 | Mining blower fan testing table housing |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410049054.7A CN103775369B (en) | 2014-02-12 | 2014-02-12 | Mining blower fan testing table housing |
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| CN103775369A CN103775369A (en) | 2014-05-07 |
| CN103775369B true CN103775369B (en) | 2016-06-01 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864082A (en) * | 2016-04-07 | 2016-08-17 | 安徽理工大学 | Display control device of industrial control computer for mining fan test table |
| CN105782098A (en) * | 2016-04-07 | 2016-07-20 | 安徽理工大学 | Display control device for touch screen of mine fan testbed |
| CN106122063B (en) * | 2016-06-30 | 2018-05-01 | 冼毅 | Air compressor control device |
| CN106015073B (en) * | 2016-06-30 | 2018-05-01 | 冼毅 | Air compressor control method |
| CN106122064B (en) * | 2016-06-30 | 2018-05-01 | 冼毅 | Air compressor control circuit |
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| CN202065011U (en) * | 2011-06-02 | 2011-12-07 | 邯郸市康创电气有限公司 | Monitoring system for main fans in mine shaft |
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| WO2011019442A1 (en) * | 2009-08-10 | 2011-02-17 | Cornerstone Research Group, Inc. | Variable performance vaneaxial fan with high efficiency |
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| US5269660A (en) * | 1990-07-02 | 1993-12-14 | Compagnie Generale Des Matieres Nucleaires | Method and an installation for adjusting the flow rate of air in a network of ducts |
| CN202065011U (en) * | 2011-06-02 | 2011-12-07 | 邯郸市康创电气有限公司 | Monitoring system for main fans in mine shaft |
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Effective date of registration: 20191205 Address after: 239000 e-commerce Industrial Park, Jinshan Road, economic development zone, Dingyuan County, Chuzhou City, Anhui Province Patentee after: Anhui Creative Technology Transfer Service Co.,Ltd. Address before: 232001 Anhui Province, Huainan city Shungeng Road No. 168 Patentee before: Anhui University Of Science And Technology |
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Application publication date: 20140507 Assignee: Anhui Wangmeng Technology Development Co.,Ltd. Assignor: Anhui Creative Technology Transfer Service Co.,Ltd. Contract record no.: X2023980052299 Denomination of invention: Control cabinet of mining fan test bench Granted publication date: 20160601 License type: Exclusive License Record date: 20231220 |