Working Principle And Usage of Stainless Steel CDL Vertical Multi-stage Pump

CDL/CDLF series lightweight stainless steel vertical multi-stage centrifugal water pumps are non-self-priming vertical multi-stage centrifugal pumps designed and manufactured by absorbing advanced domestic and foreign technologies. They use standard vertical motors and quick-install mechanical seals, which are very easy to replace. This pipeline centrifugal pump can replace foreign CR, CRN and other similar products. With its high efficiency, energy saving, reliable quality and wide range of use, it is deeply loved by the majority of users.

1. CDL vertical multi-stage pump structure

CDL vertical multi-stage pump centrifugal pump suction and discharge ports are located on the same straight line. CDL vertical multi-stage pump is mainly composed of pump body, impeller, shaft, seals and other components. The pump body consists of a suction section, a pressure section, and a middle section. Each middle section consists of two shells with an impeller inside. The impeller is the core component of the CDL vertical multi-stage pump. Its shape and size directly affect the flow and head of the pump. The shaft passes through the seal of the pump body, the impeller is installed on the shaft, and is connected to the motor through a coupling.

2. Working principle of CDL vertical multi-stage pump

The working principle of CDL vertical multi-stage pump is based on the principle of centrifugal force. When the motor drives the impeller on the shaft to rotate at high speed, the liquid filled in the impeller is thrown from the center of the impeller to the edge under the action of centrifugal force, thus increasing the speed and pressure of the liquid. An increase in velocity causes an increase in the kinetic energy of the liquid, while an increase in pressure causes an increase in the static pressure of the liquid. On the outlet side of the pump, the liquid passes through the diffuser of the pump body to convert kinetic energy into pressure, and finally outputs fluid with a certain pressure. After each impeller is stacked step by step, a certain lift is obtained.

CDL multi-stage vertical centrifugal pump is a newer pump model in the 1990s. The biggest advantages are energy saving, small floor space, easy installation, stable performance, outer cover made of 1Cr18Ni9Ti high-quality stainless steel, and wear-resistant mechanical seal for shaft seal, no leakage and long service life. The axial force is solved by hydraulic balance, so the pump runs smoothly and has low noise. The installation conditions are better than the DL type pump, and it can be easily installed in the middle of any horizontal pipeline.

CDL multi-stage vertical centrifugal pumps have high hydraulic efficiency and a wide range of performance. The inlet and outlet diameters are 25-100 mm, the flow rate is 2-72 tons per hour, and the lift is 25-150 meters. There are 9 series with more than 70 specifications, which can fully meet the requirements of high-rise buildings. It is required for water supply, drainage and fire-fighting facilities in buildings, deep mines, etc. It is the best pump type for transporting hot and cold water or general media with physical and chemical properties similar to water in various major industries.

3. Application scope of CDL multi-stage vertical centrifugal pump

Water supply: water plant filtration and transportation, water plant district water delivery, main pipe pressurization, high-rise building pressurization.

Industrial pressurization: process water systems, cleaning systems, high-pressure flushing systems, fire protection systems.

Industrial liquid transportation: cooling and air conditioning systems, boiler feed water and condensation systems, machine tool accessories, acidic and alkaline media transportation.

Water treatment: ultrafiltration systems, reverse osmosis systems, distillation systems, separators and water treatment systems for swimming pools.

Irrigation: farmland irrigation, sprinkler irrigation, drip irrigation.

4.CDL vertical multi-stage centrifugal pump has the following characteristics:

1. High efficiency: CDL vertical multi-stage pump has high efficiency and can maximize the use of liquid energy to maximize output pressure and flow.

2. Reliable: CDL vertical multi-stage pump has a simple structure, easy operation and stable operation, which can ensure long-term and efficient operation.

3. Corrosion resistance: The CDL vertical multi-stage pump is made of stainless steel and has good corrosion resistance and can be adapted to transport various corrosive media.

4. Energy saving: CDL vertical multi-stage pump has large water delivery capacity and high lift, which can meet the water needs of various industries and agriculture. It is also energy-saving and environmentally friendly.

5. Use and Maintenance

When using CDL vertical multi-stage pumps, the following points should be noted:

1. Installation: When installing the CDL vertical multi-stage pump, it is necessary to choose a suitable position to ensure the stable operation of the pump, while paying attention to the connection and sealing of the pipeline.

2. Operation: When operating the CDL vertical multi-stage pump, it is necessary to strictly follow the operating procedures to avoid misoperation and other situations.

3. Maintenance: Regularly inspect and maintain the CDL vertical multi-stage pump to ensure its normal operation and extend its service life.