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Product Introduction

The Flame-proof and Intrinsically-safe Dual Power Supply Dual Frequency Regulator for Ventilator Fans is a new fully-automatic gas discharge device developed using advanced frequency conversion technology. It features fuzzy control logic technology and superconducting heat pipe diffusing technology. This product is used to drive ventilation booster fans at the strategic locations of coal mines to discharge gas and polluted air, and thus ensuring safe, efficient, automatic and rapid gas discharge by intelligent adjustment of airstream.

It can fundamentally avoid the possibility of gas concentration over-limit accidents caused by the traditional “constant air flow” methodology, and completely eliminate gas explosion accidents. Under normal ventilation conditions, the air volume of the ventilation booster fan can also be adjusted based on gas concentration to improve the working environment at the drilling faces and longwall panels, maintain a continuous air supply, ensure safety, and achieve significant energy conservation.

System Topology

Technical Characteristics

Supports Modbus, TCP-IP and other standard communication protocols

Supports Modbus, TCP-IP and other standard communication protocols; able to connect to the underground local area network to realize real-time monitoring of operational status data on the SCADA computer.

Automatic monitoring

Automatic monitoring, gas-electricity interlocking, wind-electricity interlocking, automatic switching between main and standby power sources/VFD modules, operating status control.

Avoiding any accidents caused by “constant air flow” methodology

High-efficiency automatic gas discharge and automatic adjustment of air flow depending on gas concentration, in order to maintain required air supply to the drilling faces or longwall panels, ensure safety and avoid any accidents caused by “constant air flow” methodology .

Remarkable energy conservation in a short investment payback period.

Replacing the full air pressure starting mode of the booster ventilation fan with a soft starting mode, which helps to prolong the service life of the booster fan and air duct, and provide remarkable energy conservation in a short investment payback period.

The product features a quick opening mechanism and heavy-duty enclosure

The product features a quick opening mechanism and heavy-duty enclosure; the main and standby VFDs have identical components and configuration, while the main and standby Ex chambers and junction boxes are completely isolated.

excellent solution for converter heat dissipation

The use of copper heat pipe technology to create removable cooling modules, together with specially designed air ducts for self-cooling and forced air cooling options, provides excellent solution for converter heat dissipation.

Modular structure

Modular structure; the converter power electronic modules and control units can be removed, replaced and repaired as individual components.

Product Selection

S/N	Product Name	Product Model	Rated Voltage	Rated Current	Rated Power	Product Dimensions (W x H x D)	Product Weight
1	Flame-proof and Intrinsically-safe Dual Power Supply Dual Frequency Regulator for Ventilator Fan	BPJ1-75/660SF	660y	86A	2×75kW	W2090mm×H1145mm×D842mm	1750kg
2	Flame-proof and Intrinsically-safe Dual Power Supply Dual Frequency Regulator for Ventilator Fan	BPJ1-110/660SF	660V	123A	2×110kW	W2090mm×H1145mm×D842mm	1800kg
3	Flame-proof and Intrinsically-safe Dual Power Supply Dual Frequency Regulator for Ventilator Fan	BPJ1-75/1140SF	1140V	39A	2×75kW	W2430mm×H1155mm×D1050mm	2650kg
4	Flame-proof and Intrinsically-safe Dual Power Supply Dual Frequency Regulator for Ventilator Fan	BPJ1-110/1140SF	1140V	71A	2×110kW	W2430mm×H1155mm×D1050mm	2700kg
5	Flame-proof and Intrinsically-safe Dual Power Supply Dual Frequency Regulator for Ventilator Fan	BPJ1-160/1140SF	1140V	106A	2×160kW	W2430mm×H1361mm×D1153mm	2700kg
6	Flame-proof and Intrinsically-safe Dual Power Supply Dual Frequency Regulator for Ventilator Fan	BPJ1-200/1140SF	1140V	128A	2×200kW	W2430mm×H1361mm×D1153mm	2750kg

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