Working principle of ceramic injection pump

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Ceramic injection pump is a type of injection equipment that uses ceramic materials to manufacture key components. It has advantages such as corrosion resistance, wear resistance, and high precision, and is widely used in fields such as chemical engineering, medicine, and electronics.

Overview of Working Principle
The working principle of ceramic infusion pump is based on the principle of positive displacement pump, which achieves liquid suction and discharge by changing the pump chamber volume. Its core components include the motor, transmission shaft, ceramic piston (or plunger), pump chamber, inlet and outlet ports, etc.

Specific work process

1. Inhalation process:
   -When the motor drives the piston (or plunger) to move outward, the volume inside the pump chamber increases, forming negative pressure.
   -Under negative pressure, liquid is drawn into the pump chamber through the inlet.
2. Discharge process:
   -When the piston (or plunger) moves inward, the volume inside the pump chamber decreases and the liquid is squeezed.
   -At this point, the one-way valve at the outlet opens and the liquid is discharged from the pump chamber.
3. Circular motion:
   -The reciprocating motion of the piston (or plunger) in the pump chamber is achieved through a motor and transmission mechanism.
   -Each reciprocating motion completes a cycle of suction and discharge.

Working principle of rotary ceramic injection pump
Some ceramic infusion pumps adopt a rotary design, and their working principles are slightly different:
-Rotary reciprocating: The motor drives the ceramic rod (piston) to perform reciprocating push-pull rotational motion. During the rotation process, the movement of the ceramic rod causes a change in the volume inside the pump chamber, thereby achieving the suction and discharge of liquid.
-Rotary valve control: In some designs, the rotary valve controls the opening and closing of the inlet and outlet ports through angle switching. For example, when the hole of the rotary valve is aligned with the inlet, the ceramic measuring rod moves downward to generate negative pressure and suck in liquid; When the hole of the rotary valve is aligned with the outlet, the ceramic measuring rod moves upward to generate positive pressure and discharge the liquid.

The role of key components
-Ceramic piston (or plunger): Ceramic materials have high hardness, wear resistance, and corrosion resistance, which can ensure that the piston maintains good sealing and accuracy during long-term operation.
-Pump chamber: usually made of ceramic material, it fits tightly with the piston to ensure accurate measurement of liquid.
-Inlet and outlet: equipped with one-way valves to ensure that the liquid can only flow in one direction and prevent backflow.
-Electric motor and transmission mechanism: provide power for the movement of the piston (or plunger), and their speed and stroke determine the flow rate and pressure of the liquid.

Advantage
-High precision: The precise fit between the ceramic piston and the pump chamber enables precise flow control.
-Corrosion resistance: The chemical stability of ceramic materials enables them to adapt to various corrosive liquids.
-Low wear: The wear resistance of ceramics extends the service life of the pump.
-No leakage: Adopting new sealing structures and materials to ensure no leakage during operation.

Ceramic injection pumps have been widely used in modern industry due to their unique working principle and excellent performance, meeting the needs of various high-precision and highly corrosive liquid transportation.