Electric Fire Pumps with Vertical Multistage Jockey Pumps Adapt to Small Capacity System Requirements
The combination of electric fire pump and vertical multi-stage voltage stabilizing pump is suitable for small flow fire water supply systems. It integrates electric main pump, vertical multi-stage voltage stabilizing pump, control cabinet and pipeline accessories. It has the advantages of main pump water supply, daily voltage stabilization, compact structure and flexible parameter configuration. It is suitable for industrial plants, storage facilities, commercial buildings and various fixed fire protection projects.
The combination of electric fire pump and vertical multi-stage pressure-stabilizing pump is a complete set of equipment suitable for small-flow fire water supply systems. By reasonably configuring the electric fire main pump, vertical multi-stage pressure-stabilizing pump, control cabinet and related pipeline accessories, it provides water supply and pressure maintenance support for the fixed fire protection system. This type of equipment adopts a combination method with clear functions. The electric fire main pump is responsible for meeting the main flow and pressure requirements when the actual water supply demand of the fire protection system occurs. The vertical multi-stage pressure stabilizing pump is mainly used to maintain the pressure of the fire protection system during daily standby. The two cooperate through the control system and pressure monitoring device, so that the equipment under different operating conditions can play corresponding roles. For fire protection projects with relatively small flow requirements, limited equipment installation space, or requiring complete configuration, this combination can provide a more compact equipment solution. As the main water supply equipment, the electric fire main pump can select the corresponding pump type and performance parameters according to the engineering design requirements. Small flow electric fire pump sets can cover different flow, pressure and power configurations to meet the selection needs of fixed fire protection systems of different sizes. The main pump can adopt different structural forms such as single-stage pump, end-suction pump, and multi-stage pump, and the material configuration of cast iron, stainless steel or bronze impeller can be selected according to the transmission medium and engineering requirements. Properly matching the flow rate and head of the pump set will help the equipment meet the actual water supply requirements of the fire protection pipe network, while avoiding increasing the difficulty of system configuration due to a mismatch between equipment parameters and engineering requirements. The vertical multi-stage pressure stabilizing pump is an important part of the combination. It adopts a multi-stage centrifugal structure and uses multiple impellers to gradually increase the pressure of the water, providing a higher head under smaller flow conditions. Therefore, it is suitable for daily pressure maintenance in fire protection pipe networks. The designed flow rate of the pressure stabilizing pump is usually smaller than the main fire pump, and the head is higher than the working head of the main pump, so that it can compensate for the slight pressure drop in the fire pipe network. When pressure fluctuations occur in the pipe network due to minor leaks, temperature changes or other normal factors, the pressure stabilizing pump can be put into operation according to the set control conditions to compensate for the system pressure, thereby reducing the frequent starts of the main fire pump due to small pressure changes. The vertical multi-stage structure also has the characteristics of relatively compact layout. The inlet and outlet can be arranged on the same plane at the bottom, which is convenient for connection with the complete pump set pipeline. It has certain installation adaptability for fire pump rooms or projects with limited equipment space. The entire set of equipment usually installs the main pump, pressure stabilizing pump, control cabinet and pipeline accessories on a common base or unified support structure, making the connection relationship between the equipment clearer. The control cabinet can perform corresponding operation control on the electric fire pump and pressure stabilizing pump, and obtain pipe network pressure information in combination with pressure gauges, pressure sensors and other devices. Relevant valves, check valves, flexible joints, flanges, pressure vessels and other accessories can be configured according to project requirements, so that the equipment forms a more complete fire water supply unit. The complete set structure can reduce the workload of dispersed procurement and installation of multiple devices on site, and also facilitates overall transportation, on-site installation, system debugging and post-inspection. Another advantage of this product portfolio is engineering configuration flexibility. The model, power, flow rate and head of the electric main pump and vertical multi-stage voltage stabilizing pump can be selected according to the parameters of the fire protection system. The control system and supporting accessories can also be configured according to the actual needs of the project. For small and medium-sized commercial buildings, industrial plants, storage facilities, public buildings and other fixed fire protection projects, complete sets of equipment with corresponding specifications can be selected based on the scale of the pipe network and fire protection design requirements. In the daily standby state, the vertical multi-stage pressure stabilizing pump is mainly responsible for the task of maintaining pressure; when the system has actual fire water supply needs and reaches the set starting conditions, the electric fire main pump can be put into operation to provide the main water supply capacity required by the fire protection system. Through this division of labor between the main pump and the pressure-stabilizing pump, the operation logic of the equipment can be made clearer, and it is conducive to daily inspection and maintenance management of the fire water supply system. Generally speaking, the combination of electric fire pump and vertical multi-stage pressure-stabilizing pump takes into account the two requirements of main fire water supply and daily pressure maintenance. It has the characteristics of compact structure, clear functional division of labor, convenient pressure maintenance, flexible parameter selection and good system compatibility. By rationally selecting the performance of the main pump and pressure-stabilizing pump, and configuring corresponding control equipment, pressure monitoring devices and pipeline accessories, this type of complete fire pump system can adapt to the equipment configuration requirements of different small-flow fire protection projects and provide a complete product solution for fixed fire water supply systems.
