Manual Cutter,Hand Tile Cutter,Special Porcelain Plate,Porcelain Special Equipment NINGBO SANDING EDGE MECHATRONICS INDUSTRY AND TRADE CO., LTD , https://www.sandingedge.com
Diesel pump sets for fire protection require quite complex controls such as spray dwell, fire hydrant constant pressure water supply, quick response, manual and automatic start-up, and the like. Currently domestic fire pump group commonly used electric pump and motor inverter technology to achieve the relevant requirements, according to fire law requirements in the fire must cut off the electricity, so the electric pump group needs to be equipped with diesel generating sets, the result of the system becomes complex, lower reliability, Increased costs. In this case, direct control of the diesel pump can overcome the shortcomings of the electric pump. The composition of the diesel pump group in the development of the control system when the pump group structure. Control system principle Diesel pump group in the operation of the following main control problems: (1) Diesel engine monitoring of the process, in view of the problem already have mature products. (2) Monitoring related to diesel engine and water pump. Considering the need of separate debugging, the monitoring contents related to diesel engine and water pump are mainly in the following aspects: ①control of water pressure and throttle opening; ② limitation of maximum and minimum speed; ③ protection of pump when water is not water; ④ parameter Set and display; ⑤ regular operation of the control; ⑥ anomalies and alarm instructions.