The trailer-mounted mixed-flow pump is a flood control and emergency drainage solution that integrates an efficient large-flow mixed-flow pump unit with a sturdy mobile trailer. It perfectly combines the hydraulic advantages of the mixed-flow pump, such as "large flow, high efficiency, and wide operating range", with the mobile advantages of the trailer chassis, such as "flexible maneuverability, rapid deployment, and not relying on a fixed power source". Before leaving the factory, the trailer-mounted mixed-flow pump has completed the overall installation and debugging of the pump, engine, transmission system, and control system on the trailer. Once connected to the inlet and outlet pipes, it can be put into operation. Its core design goal is to address situations requiring rapid response and large-flow transportation and discharge, such as urban flooding, farmland irrigation, emergency water diversion in rivers, and foundation pit drainage at construction sites. It is a "mobile drainage fortress" in the fields of water conservancy, municipal services, agriculture, and engineering construction.

Products features

Outstanding maneuverability and rapid response capability: The entire pump unit is installed on a heavy-duty steel trailer chassis, equipped with heavy-duty tires, steering axles, drawbars, and lighting signal systems. It can be quickly towed to any drainage site by a pickup truck, tractor, or light-duty truck. After arriving at the site, no complex foundation pouring and installation are required. Just simple leveling and connection of pipelines are needed, and drainage can usually be initiated within half an hour, truly achieving "called in, ready to fight".
High-efficiency large-flow drainage performance: Using a mixed-flow impeller, it combines the head of a centrifugal pump and the large flow characteristics of an axial-flow pump. Under relatively low head conditions (commonly 3-15 meters), it can achieve a huge flow rate of several thousand cubic meters per hour, with drainage efficiency far higher than that of centrifugal pump sets of the same power, especially suitable for rapid drainage of large areas of water accumulation and river replenishment for large water volume transportation tasks.
Strong and stable power system: Usually equipped with well-known high-speed diesel engines (such as Cummins, Perkins, Daifuku, etc.), providing abundant and reliable power. The engine and the pump are directly connected through a high-strength coupling or driven by a gearbox, with low efficiency loss. The fuel tank volume is optimally designed to support long-term continuous operation, meeting the requirements of uninterrupted drainage during flood control and emergency rescue.
Sturdy structure and integrated design: The trailer chassis is welded with channel steel or I-beam, providing a stable structure that can withstand the bumps of complex road surfaces. All components such as the pump, engine, radiator, muffler, control system, and fuel tank are reasonably arranged and integrated for efficient use. The overall structure is usually coated with anti-corrosion paint to adapt to the harsh outdoor environment. Some high-end models will be equipped with adjustable hydraulic support legs to enhance stability during operation.

Work mode and operation procedure

The working mode of the trailer-mounted mixed-flow pump is a typical "mobile deployment, fixed-point strong drainage". After arriving at the operation site, the operator first selects a solid and flat ground to park the trailer, lowering the support legs to ensure the stability of the unit. Then, quickly connect the pre-prepared high-strength flexible water outlet hose or flanged steel pipe, lowering the inlet to sink into the water to be drained or the water source, and extending the outlet to the discharge area.
When the preparations are complete, the operator starts the diesel engine on the control panel. The engine's power directly drives the impeller of the mixed-flow pump to rotate at high speed. The impeller sucks water axially and gains energy under the action of centrifugal force, generating both axial thrust and centrifugal force, causing the water to flow out at an inclined angle, thus achieving large flow rate lifting at a medium head. The water flows through the pump casing, collects and is pressurized, and then is ejected from the outlet in a high-speed and large-flow form, quickly draining the water in low-lying areas to rivers, pipelines or designated areas.
The entire drainage process can be carried out continuously. The main tasks of the operator are to monitor the data on the instrument panel, ensure sufficient fuel supply, and observe the inflow and outflow. After the task is completed, the engine is turned off, the pipeline is disassembled, the support legs are removed, and the vehicle can be towed quickly to the next drainage point.

Application scenario

Urban flood and drainage emergency rescue: It is used to quickly drain severe water accumulation from urban flood-prone areas such as overpasses, underground passages, low-lying communities, and subway stations. It is the core equipment of municipal flood control departments.
Agricultural drought resistance, drainage and irrigation: It removes waterlogging in farmlands during the flood season and pumps water from rivers, lakes, and reservoirs for large-scale irrigation of farmland during the dry season, ensuring agricultural production.
Hydraulic engineering and river management: It is used for emergency discharge of reservoirs, ecological water replenishment of rivers and lakes, drainage of basins within embankments, and temporary replacement or reinforcement of sluice pump stations.
Construction site drainage: It is used for large-volume drainage operations in deep foundations of construction sites and tunnel excavation during road and railway construction, maintaining dryness of the work area.
Industrial and mining drainage: Industrial sites' emergency drainage, removal of mine water accumulation, water replacement for fish ponds, etc., in industrial scenarios requiring large flow rates for transportation and discharge.

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