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Help CenterChuangan Explosion-proof BPJ1-*/1140（660）SF Mine-used Flameproof and Intrinsically Safe Dual-power and Dual-frequency Variable-speed Governor
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BPJ1-*/1140(660)SF
Flameproof and Intrinsically Safe Dual-Power and Dual-Frequency Speed Governor for Ventilators
Purpose and Scope of UseApplication and Range of Application
It is applicable to underground coal mines with explosive atmospheres. In an AC power supply system with a frequency of 50HZ/60HZ and a voltage of 1140V(660V), where the three - phase neutral point is ungrounded, the equipment features dual - loop input power supply and independent dual - frequency converter drive. By adjusting the operating frequency of the ventilator, it can achieve the goals of gas emission, on - demand air supply and energy - saving economic operation. It can also automatically adjust and control the air volume according to comprehensive environmental parameters such as monitored gas concentration, carbon monoxide concentration and ambient temperature. It is an automatic drive control device with multiple functions and high energy efficiency, and has the function of automatic switching between dual units in hot standby. It can be used for power supply and drive control of mine - used axial local ventilators and mine - used counter - rotating axial local ventilators in underground coal mines..
Product Features
Automatically control the air volume, with high efficiency and energy saving, and can be used for multiple purposes. According to the function and parameter settings, the air volume can be automatically adjusted, featuring high efficiency and energy saving. It can save about 25% of electric energy compared with ordinary fan switches; it has the function of manually adjusting the air volume setting. This product can not only meet the needs of local ventilators in coal mines, but also can be used for the drive control of small - power asynchronous and synchronous machines such as water pumps and belt conveyors through parameter settings. For key equipment such as the frequency converter of the loading station belt conveyor, one can be used while the other is on standby for drive control, with dual - machine hot standby and one - key switching. The equipment has the characteristics of strong universality and wide application range.
The equipment integrates the monitoring and control functions of gas, carbon monoxide and ambient temperature. This equipment integrates T1, T2, T3, CO and temperature monitoring ports, as well as the functions of wind - electricity and gas - electricity interlock. It has the functions of real - time high - speed acquisition, analysis and processing of PLC. By monitoring the concentrations of various dangerous gases and the ambient temperature, and adjusting and controlling the output of the frequency converter according to the set values, the purpose of automatically controlling the air volume or stopping the machine can be achieved. The equipment has a compact structure, which improves the integration degree, reduces the number of equipment and saves the cost.
Good temperature rise control and high safety and reliability. The core components of the frequency converter, such as IGBT, use a new generation of power modules, with high drive density, low temperature rise and long device life. Core and peripheral control devices such as IGBT, PLC and control relays are all selected from internationally well - known brands, thus ensuring the overall performance and service life of the product; the driver has various protections such as short - circuit, overload, over - voltage, under - voltage, phase loss, over - temperature of the IGBT module and ambient temperature monitoring, and provides intuitive text and status display, ensuring the safety and reliability of the product during use.
Excellent performance and good dynamic speed - regulating performance. It has control modes such as V/F, open-loop vector, and closed-loop vector, with stable and reliable drive; wide speed regulation range and good dynamic and steady-state performance. It has a built-in PLC programmable controller, with the function of connecting and monitoring environmental monitoring sensors such as CH4 and CO. It can perform automatic speed regulation control according to the air supply volume requirements, with obvious energy-saving effects.
Friendly human-machine interface and convenient operation. The frequency converter uses a 7-inch full-Chinese LCD touch screen combined with a 16-key matrix keyboard for operation, which is convenient for debugging, operation, and query. The setting of the main and standby units can be switched with one key. It has functions such as basic data, operating status, operating data, fault text, trend records, and information storage. The system is also equipped with a frequency converter keyboard control panel for emergency standby system control.
Main technical parametersMain technical parameters
Product modelProduct model |
BPJ1-75/660SF； BPJ1-110/660SF； BPJ1-75/1140SF; BPJ1-110/1140SF |
|
Rated power Rated power (kW) |
2x75; 2x110 |
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Rated frequency Rated frequency (Hz) |
50/60 |
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Rated input voltage Rated input voltage (V) |
Three-phase AC660/1140 Three-phase AC 660/1140 |
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Rated output voltage Rated output voltage (V) |
Two circuits, three-phase AC0~660/1140 Two circuits, three-phase AC 0-660/1140 |
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Rated output frequency Rated output frequency (Hz) |
0~50 |
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Control method Way to control |
V/F,Open loop vector, closed loop vector V/F, open loop vector, closed loop vector |
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Energy saving effect Energy saving effect |
Save more energy than ordinary fan switches25%or more More than 25% energy saving than ordinary fan switch |
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Auxiliary functions Accessibility |
It hasT1, T2, T3, COconcentration monitoring and automatically adjusts the air volume according to the settings With T1, T2, T3, CO concentration monitoring and automatic wind control according to the setting |
|
Multi-machine power balance Multi-machine power balance |
Through parameter settings, it can achieve synchronous communication control, has the function of online power balance, and can be used in on-site applications such as belt conveyor drives Through parameter setting, synchronous communication control is realized, with on-line power balance function, which can be used for driving field applications such as belt conveyors |
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Cooling method Cooling method |
Heat pipe+Fan cooling; natural air cooling Heat pipe + fan cooling; natural air cooling |
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Adapted fan power Adapted fan power |
Counter-rotating fan:2x30KW, 2x37KW; 2x45KW, 2x55KW Ordinary fan:55KW, 75KW; 90KW, 110KW Counter-rotating fan: 2x30KW, 2x37KW; 2x45KW, 2x55KW Ordinary fan: 55KW, 75KW; 90KW, 110KW |
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