Sanitary grade self-priming pump CP return pump is a type of pump commonly used in industries such as food, beverage, and pharmaceuticals. It has the characteristics of self-priming and return, and is widely used in the field of liquid transportation. Today, the editor will introduce the process principle of the hygiene grade self-priming pump CP return pump, aiming to deepen the understanding and application of this equipment.
The hygiene grade self-priming pump CP return pump is a hygiene grade return pump with a built-in impeller self-priming device. The pump body and components are made of stainless steel. The device has a simple and compact structure, easy assembly, and is easy to clean and disinfect. Its main characteristics are as follows:
1. Strong self-priming ability, no need for pressurization device, can achieve self-priming of low flow and low viscosity liquids;
2. Built in impeller self-priming device, noise free and stable performance;
3. Flexible installation position, no need for foundation fixation;
4. It can work in both forward and reverse directions without changing the direction of the pipeline.
The hygiene grade self-priming pump CP return pump is mainly composed of pump body, impeller, electric motor, and inlet and outlet pipelines. Among them, the pump body and inlet/outlet adopt a quick installation card design, which is convenient for assembly and disassembly, improving the efficiency and maintenance convenience of the equipment.
The hygiene grade self-priming pump CP return pump has the characteristics of self-priming and return, and its process principle is as follows:
1、 Self suction principle
The hygiene grade self-priming pump CP return pump is equipped with an impeller self-priming device, which generates negative pressure through the centrifugal force of the impeller to cause self-priming and achieve self-priming liquid transportation. The specific principle of liquid self-priming is as follows:
1. Fill the pump with a certain amount of liquid in advance;
2. Start the motor, the impeller rotates, generating centrifugal force from the center outward;
3. Centrifugal force pushes the air inside the pipeline outward along with the liquid, creating negative pressure;
4. Under negative pressure, the liquid in the pipeline begins to be pumped in, resulting in self-priming.
The self-priming capacity of hygiene grade white suction pump CP return pump is generally 4-5 meters. The design of external feeding tank and feeding pipeline can effectively improve the self-priming effect.
2、 Return principle
The return of the CP self-priming pump for hygiene is mainly achieved through the movement of the impeller. When the liquid pressure inside the pump increases, the reflux valve closes, and when the liquid pressure decreases, the reflux valve automatically opens and the liquid begins to reflux. The specific return principle is as follows:
1. After the liquid inside the pump enters the suction port, the pressure increases due to the force exerted by the impeller;
2. The pressure increases, the reflux valve closes, and the reflux channel is not opened;
3. Due to the frictional resistance of pipelines and other factors, pressure decreases during the flow of liquids;
4. When the pressure decreases, the reflux valve automatically opens and the liquid in the pump body begins to reflux;
5. When the impeller starts moving again, the liquid enters the pump tube again and the liquid reflux is complete.