Diesel Fire Pump Sets Use Automatic Control for Main and Jockey Pump Coordination
The diesel fire pump set uses a combination of a diesel main pump and a pressure-stabilizing pump, and achieves linkage operation through automatic control. It is equipped with pressure monitoring and protection functions and is suitable for industrial, warehousing and fixed fire water supply systems.
The diesel fire pump unit realizes the coordinated operation between the diesel main pump and the pressure-stabilizing pump through the automatic control system. It integrates the power equipment, fire pump, pressure-stabilizing pump, control cabinet, pressure vessel and related pipeline components into a complete system to provide a complete equipment configuration for the fixed fire water supply system. This product uses a diesel engine as the main pump power to drive the main pump when the fire protection system requires water supply. It is also equipped with a pressure-stabilizing pump with a small flow rate but a high lift to maintain the normal pressure of the fire protection pipe network, so that the entire system can perform corresponding operation adjustments according to pressure changes. The automatic control cabinet is an important part of the pump unit. It can uniformly control the main diesel pump and the pressure stabilizing pump, and implement corresponding start and stop operations according to the system pressure status, reducing the need for frequent manual operations. The control system can also provide overload, overcurrent and other protection functions according to the configuration, making it convenient for staff to manage equipment status and perform daily inspections. The pressure stabilizing pump is mainly responsible for the daily pressure maintenance task of the fire protection pipe network. When there is a small pressure change in the system, the pressure of the pipe network can be maintained through a small flow of pressure compensation operation to avoid frequent starting of the main fire pump, so that the main pump can be used more for actual fire water supply needs. The diesel main pump is responsible for the main fire water supply task, providing corresponding power and hydraulic output when the system requires larger flow rates. The two pumps cooperate according to their respective functions to enable the fire water supply system to operate in a more reasonable manner. According to the public information on the official website, diesel fire pumps can adopt different structures such as single-stage pumps, horizontal split-type pumps, end-suction pumps or multi-stage pumps, and the corresponding flow rate, lift and diesel engine power can be selected according to project requirements, so the equipment has good parameter configuration flexibility. The flow rate of related products can cover 30 to 9000 GPM, and the head range is 3 to 20 Bar. The actual selection needs to be determined based on the design parameters of the fire protection system. The pump set can also be equipped with accessories such as pressure vessels, pressure gauges, pressure sensors, check valves, gate valves, flexible joints, flanges, and suction and discharge public pipelines to form a complete connection between the main pump, pressure stabilizing pump and the fire protection pipe network. The overall equipment is centrally installed on a common base, and the diesel engine, fire pump, voltage stabilizing pump, control cabinet and pipeline components are arranged in the same complete set of equipment, which is conducive to equipment transportation, on-site positioning and installation, and also facilitates subsequent inspection and maintenance of each component. Diesel engines can also be equipped with fuel tanks, water tanks, fans and related auxiliary devices to provide necessary conditions for the operation of the power system. For fire water supply places such as warehouses, industrial plants, docks, airports, petrochemical facilities, power facilities, ships, etc., diesel fire pump sets of corresponding specifications can be selected according to the flow, pressure, pipe network scale and installation conditions of the project. During actual operation, the automatic control system, pressure detection device, pressure-stabilizing pump and diesel main pump work together. When the pipe network pressure is within the normal range, the pressure-stabilizing pump can undertake the daily pressure compensation task; when the fire protection system has a large water demand and causes significant pressure changes, the control system can start the corresponding fire pump according to the set logic to provide the required water flow for the fire protection pipe network. Through the division of labor between the main pump and the pressure-stabilizing pump, the equipment can take into account daily pressure maintenance and fire water supply needs, while using automatic control to reduce manual intervention. For fixed fire protection systems that require independent diesel power support, this complete configuration can integrate power, pump sets, pressure control and operation management into one system, and can be configured according to the flow and head requirements of different projects. The specific performance of the equipment depends on the selected fire pump model, diesel engine power, pressure stabilizing pump parameters and system design conditions. Therefore, in actual projects, selection, installation, commissioning and regular maintenance should be carried out in accordance with fire protection design requirements to ensure that the pump set is in normal standby state and meets system operation requirements.
