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Working principle of circulating water vacuum pump
Date: 2024-11-25Read: 4
Circulating water vacuum pump is a commonly used vacuum device, widely used in chemical, pharmaceutical, electronic, aerospace and other fields. It uses water as the working medium, which not only achieves a high degree of vacuum, but also effectively cools the pumped object, preventing it from overheating and damage inside the pump. It has the advantages of high reliability, easy operation, and simple maintenance.
The working principle of a circulating water vacuum pump mainly includes the following three aspects:
1. Principle of vacuum pump
The circulating water vacuum pump uses centrifugal motion to discharge gas from the equipment and achieves cooling through water circulation. When the pump body starts to rotate, the gas inside the pump chamber will be squeezed out and enter the exhaust pipe.
During the rotation of the pump body, water will circulate through the pump body and cool the pump body and the gas entering the equipment. When the pump body approaches the vacuum level, the air discharge valve on the dial will be opened to release gas until the desired vacuum level is reached. If a higher vacuum degree is required, a higher-level vacuum pump needs to be used for further processing.
2. Water cooling principle
Circulating water vacuum pump achieves equipment cooling through water circulation. When water starts to circulate, it will take away the heat in the equipment during the flow process and discharge the heat through the heat dissipation system. This method enables the device to operate for a long time without overheating or damage.
Cooling water works in a water circulation system based on the following principles:
(1) Cooling water is pumped from the water tank into the pump body and flows along the pump body.
(2) During the flow process, water carries away the heat emitted by the pumped object through the pump body.
(3) The cooling water returns to the water tank and continuously circulates to cool the pumped object.
Due to the stable operation of the equipment caused by the circulation of water, the circulating water vacuum pump has become an important time equipment for achieving high vacuum degree and continuous output.
3. Water sealing principle
When the circulating water vacuum pump is applied to exhaust gas, water is used as the sealing medium to achieve the sealing of the exhaust. When gas enters the pump chamber, it is gradually pumped out due to centrifugal force under the rotation of the pump body, forming a vacuum state. At the same time, the water in the pump chamber is also discharged together with the gas.
Due to its strong sealing properties, water can form an air chamber, thereby achieving sealing inside the pump chamber. At the same time, water can also provide lubrication and cooling, ensuring that the pump body can operate smoothly for a long time.
