What is the working principle of the miniature electric diaphragm pump?

The miniature electric diaphragm pump is powered by a micro DC motor (generally 5V, 12V, 24V motor), which drives the internal mechanical eccentric device to perform eccentric motion, and the eccentric motion drives the internal diaphragm to reciprocate. Therefore, the air in the pump chamber of the fixed volume is compressed (the suction port is closed when the compressor is opened, the exhaust port is opened to form a slight positive pressure), and the extension (the exhaust port is closed when the compressor is closed, and the suction port is opened to form a negative pressure), and the pumping is performed. A pressure difference is generated between the air port and the outside atmospheric pressure. Under the action of the pressure difference, the gas is pressurized (sucked) into the pump chamber and discharged from the exhaust port.

What is the difference between a return pump and a pressure switch pump?

Reflux type: The pump has its own pressure relief overflow circuit device. When the water outlet is closed and sealed, the liquid in the water pump begins to automatically decompress and return, the pressure inside the water pipe will not increase, and the water pipe will not burst.

Pressure switch type: After turning on the electric switch, turn on the water gun switch, start working, turn off the water gun switch, the water pump automatically cut off and stop working; then turn on the water gun switch, the water pump automatically starts to work. The pressure of the pump automatically adjusts the pressure according to the size of the nozzle.

Generally, there are many types of sprayers, and the pressure switches are generally used on the car washing machine. Look at your own situation and choose the right pump.

What is the scope of use of DC pumps?

1、The production of electric sprayers used in agriculture.

2、To solve the use of RV, yachts, etc. in the use of food, washing, bathing, toilet, washing water.

3、Vehicles, ground and other cleaning equipment

4、Food, beverage processing and processing equipment.

5、The family water supply.

6、The solar industry.

7、water purification industry.

8、Other equipment and systems requiring liquid transfer, injection and even metering

What are the common faults and troubleshooting methods for knapsack electric sprayers?

Insufficient spray pressure, poor atomization: If the water ball valve is lifted by dirt, the inlet valve can be removed and the dirt can be removed with a cloth; if the cup is damaged, the new cup can be replaced; if the joint is not installed Sealing ring, or leaking due to damage to the sealing ring, can be installed or replaced.

Spraying does not form fog: If the inclined hole of the nozzle body is blocked by dirt, the inclined hole can be dredged; if the cleaning nozzle hole can be disassembled due to the nozzle hole blockage, the hard object orifice such as wire or copper needle cannot be used to prevent the hole from expanding. To make the spray quality worse; if the filter in the casing is clogged or the ball is suspended by the water valve, the filter should be cleaned and the dirt on the ball should be cleaned.

The switch leaks or does not move: If the switch cap is not tightened, tighten the switch cap; if the washer on the switch core wears, replace the washer; the switch does not move, because it is placed for a long time, or used for too long, the switch The core is adhered by the etch of the agent, and the parts should be removed for cleaning in kerosene or diesel oil; if it is difficult to remove, it can be immersed in kerosene for a period of time, and then removed and removed, and hard objects cannot be used.

Water leakage at each joint: If the joint is loose, tighten the nut; if the gasket is not flattened or damaged, the gasket should be flattened or the gasket replaced; if the gasket is hardened by shrinkage, it can be softened in animal oil before use.

How to check the cleaning effect of the domestic high pressure cleaner?

After using a high-pressure cleaner for high-pressure water jet cleaning, we finally want to know how the cleaning effect works. This requires inspection, then, how to check the cleaning effect of the high pressure cleaner after cleaning? There are several methods, which are:

(1) Random sampling method

This kind of detection method is suitable for cleaning objects more cumbersome. Due to time, we can't test the cleaning objects one by one. At this time, we often need to randomly extract individual cleaning objects for testing. The result is to determine the cleanliness of all the cleaning objects. The need to pay attention to the use of this method is to select a certain number of tests to more accurately reflect the overall situation.

(2) Measuring with the most polluted parts as the inspection standard

When we use this method for testing, if the most polluted parts have reached the required level of cleanliness, then the cleaning effect of other parts with less serious pollution can generally meet the requirements of cleanliness.

(3) Special inspection of specific dirt

This method of detection is to select the most influential dirt for measurement. The general mechanical parts are degreased and cleaned. This method is suitable. At this time, the focus of the test is oily dirt without specific detection of other dirt. This test method can also check the cleanliness of the object to be cleaned.

Through the above introduction, we can see that there are many ways to detect the cleaning effect of the high pressure cleaner. You can choose the detection method scientifically according to the specific situation.