The working principle of single-stage centrifugal pump, common single-stage pump models

Category: Water pump knowledge

2024-06-08

The working principle of single-stage centrifugal pump is based on the application of centrifugal force. By accelerating the liquid and pushing it to the outlet, it can realize the extraction of liquid from low and efficiently deliver it to a higher position or far away. This working principle makes the single-stage centrifugal pump become an indispensable fluid transportation tool in many fields, providing convenient and efficient liquid transportation solutions for industrial production and daily life.

As a common fluid conveying equipment, single-stage centrifugal pump plays an important role in industry, agriculture, construction and other fields. Its unique working principle enables it to inhale liquid from a low place, and push it to a higher height or distance at high speed through the acceleration effect inside the pump body. This article will explore the working principle of single-stage centrifugal pump in depth to help readers better understand its operating mechanism and application.

Before the start of the single-stage centrifugal pump, the pump shell is filled with the liquid being transported; after the start, the impeller is driven by the shaft to rotate at a high speed, and the liquid between the blades must also rotate. Under the action of centrifugal force, the liquid is thrown from the center of the impeller to the outer edge and obtains energy, leaving the outer edge of the impeller at high speed and entering the volute pump shell. In the volute, the liquid slows down due to the gradual expansion of the flow channel, and converts part of the kinetic energy into static pressure energy. After zui, it flows into the discharge pipeline at a higher pressure and is sent to the required place. When the liquid flows to the outer edge from the center of the impeller, a certain vacuum is formed in the center of the impeller. As the pressure above the liquid level of the storage tank is greater than the pressure at the inlet of the pump, the liquid is continuously pressed into the impeller. Visible, as long as the impeller continues to rotate, the liquid will continue to be sucked and discharged.

The working principle of a single-stage centrifugal pump can be summarized as the following key steps:

1. Water intake stage: When the work starts, the water inlet of the pump sucks in liquid. At this stage, the pressure in the pump body is low, causing liquid to be introduced into the pump chamber.

2. Rotating impeller: The liquid entering the pump chamber is then captured by the rotating impeller of the centrifugal pump. The impeller is usually located in the center of the pump and is rotated by a drive device (such as an electric motor or engine).

3. Centrifugal force: With the rotation of the impeller, the liquid is forced to move outward, generating centrifugal force. This centrifugal force accelerates the liquid, thereby increasing its kinetic energy.

4. Water stage: under the action of the impeller, the liquid is pushed to the outlet of the pump through the flow channel (or pump shell) in the pump body. Due to the acceleration and centrifugal force of the liquid, the liquid has a higher pressure and flow rate at the water outlet.

5. Delivery liquid: The high-pressure liquid at the outlet is delivered to the target location for various applications such as cooling, water supply, and sewage. During the delivery process, the rotating impeller of the pump continuously provides centrifugal force to ensure a continuous flow of liquid.

Single-stage pump models are diverse, according to different application requirements and design characteristics, can be divided into many types, these types of pumps according to different application requirements and working environment conditions to design to meet the needs of various fluid transportation and processing.

The following are some common single-stage pump models:

IR type horizontal single-stage single-suction hot water pump. Designed for hot water delivery, with good temperature adaptability.

Type IY horizontal single-stage centrifugal oil pump. It is suitable for the transportation of oil medium and has good sealing performance.

IS horizontal single-stage single-suction centrifugal pump. Widely used in industrial and urban water supply and drainage systems, with high efficiency and energy saving characteristics.

WSJ type new non-clogging slurry pump. It is suitable for conveying slurry containing solid particles and has good non-clogging performance.

CH type horizontal single stage single suction standard chemical centrifugal pump. It is suitable for chemical and pharmaceutical industries and provides precise flow control.

S type single stage single suction water centrifugal pump. Designed for clean water delivery, with high efficiency and reliability.

IH horizontal chemical corrosion-resistant single-stage single-suction centrifugal pump. It is suitable for chemical industry and has good corrosion resistance.

GD type pipeline centrifugal pump. This pump design is suitable for pipe installation, providing efficient fluid delivery.

GL type vertical single stage pump. The vertical design saves space and is suitable for occasions that require compact installation.

CIH(IMC) type corrosion resistant stainless steel magnetic rotating single stage centrifugal pump. Suitable for conveying corrosive media, with good corrosion resistance.

IBG, IBW type horizontal stainless steel stamping single stage centrifugal pump. Suitable for occasions requiring high sealing and corrosion resistance.

Type TS stainless steel horizontal single stage centrifugal pump. Suitable for occasions requiring high hygiene standards, such as food and beverage processing.

KTB type refrigeration air conditioning pump. Dedicated to refrigeration and air conditioning systems to provide good cooling effect.

KTZ type direct-coupled air-conditioning pump. The direct connection design simplifies the installation process and improves efficiency.

XA type single stage single suction centrifugal pump. Suitable for industrial and urban water supply and drainage systems.

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