Fountain pump is actually a kind of well used submersible pump, which is specially developed for agricultural drainage and irrigation, sprinkler irrigation, industrial and civil building drainage system. It is suitable for ponds, fish ponds, water towers, deep wells and high buildings.
The water feature fountain has a high corrosion resistance to the motor, usually made of all stainless steel or high-tech materials. The impeller is also made of special materials to prevent the impeller from loosening, and has a special constant potential grounding device to implement leakage protection. The pump body also has a stainless steel screen shield and three-phase four wire cable. Because the music fountain needs to change its shape with the music rhythm changing from high to low, and the professional water pump company also conducts technical research and development on the basis of the original ordinary fountain pump, so that the pump can be started frequently, fully meeting the use of the fountain. At the same time, the larger the fountain area, the higher the power requirements of the fountain pump. In order to meet the requirements of various fountains, the vertical and horizontal fountain pumps on the market have complete specifications and models.
When using the fountain pump, there are several points that need special attention:
1. Equipment grounding:
In order to ensure the personal safety of fountain, the national compulsory standard for submersible pump is to adopt protective grounding. Otherwise, once the pump shell leaks, the water near the pump outlet and the water surface of the reservoir will be electrified, seriously endangering the safety of people and animals, and also causing the wave cost of electric energy.
If the metal shell of the fountain pump is connected to the grounding body (the grounding resistance is not more than 4 Ω) meeting the national standard, when leakage occurs, the current will form a closed circuit through the working grounding wire and power supply of the pump shell, grounding body, grounding and transformer. Once the leakage current is too large, the protection device of the pump will work - fuse or air switch will trip, and the spray will be automatically disconnected Power supply of spring pump.
2. Install leakage protector:
Once the leakage crisis occurs, as long as the leakage value exceeds the action current value of the leakage protector, usually no more than 30mA, the leakage protector will work, disconnect the switch, and stop the fountain.
3. Start up when the power supply voltage is abnormal:
As a submersible pump, too high or too low voltage will make the pump body temperature rise, shorten the service life of the pump, or even burn out. Now in many places, there are problems such as long low-voltage power supply line, too high line start voltage and too low terminal voltage. Therefore, when the fountain is running, the operator should always pay attention to the power supply voltage value. When the power supply voltage value is higher than 10% or lower than 10% of the rated voltage, and the current is higher than 20% of the rated current, the operator should stop the machine immediately to avoid starting when the voltage is abnormal.
4. Reverse rotation of motor:
Although some fountain submersible pumps can produce water in both positive and negative directions, due to the small amount of reverse water and large current, the motor will be damaged if the reverse time is too long.
5. Avoid long-term overload