Water ring vacuum pump needs power supply in use and can be used in power supply equipment normally, but the power supply method is different. The efficiency varies with the mode of power supply. Here we introduce the power supply mode.
1. The water ring vacuum pump has a large specific gravity because the extraction medium is "water or liquid". The working medium of micro vacuum pump and micro air pump is "gas" with light specific gravity. Therefore, the working current of the vacuum pump is generally larger than that of the latter, about 1 ~ 10 amperes, but the working current of the latter is generally not from a few hundred milliamperes to a few amperes.
2. Battery is the general term of battery. The principle is different from the dry battery, because it can provide large current and power, so it is widely used in electric vehicles, cars and other mobile vehicles, agricultural spraying, field sampling and other power shortage.
3. The common dry battery (such as 1.5V No.1 battery) has large internal resistance and small current supplied by itself. Most of the voltage is consumed by internal resistance, so the voltage drop is fast. From the point of view of power and service time, it is suitable for the power supply of water supply ring vacuum pump.
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