Does the circulating pump prevent dry burning? Why does the circulating pump heat?

Hello dear, the circulating pump upstairs will cause the water heater to start frequently, because the old-fashioned water flu should be used to circulate the pump, now it is basically controlled by remote control switches, and only the remote control will start, because the biggest drawback of water flu should be that as long as the water pipe vibrates a little, it will start, resulting in a useless waste of resources.

Therefore, after we install the circulating pump, it should be used like this: under normal circumstances, it is set to remote control, and the regular cycle is 2 minutes, and after 2 minutes, the whole house faucet comes out of hot water, which is very convenient. There is also the possibility of setting the component time period to start, such as 7 o'clock in the morning to 8 o'clock when the family gets up and needs to use hot water, this time period will let the circulating pump work continuously, as long as the circulating pump detects that the temperature of the water pipe is lower than the set value, start the water heater and start to boil hot water, so that the advantage is that at any time between 7 and 8 o'clock, as long as the people in the house turn on the faucet, they will immediately produce hot water, for example, just like if you live in a hotel, do you think that the hotel faucet is hot water 24 hours a day at any time?

It is because the hotel also uses this function, but the hotel is equipped with a boiler, the general family does not need a boiler, you can install a hot water circulation pump to ensure that all hot water pipes have hot water, of course, this function does bring an increase in energy consumption, but it also brings convenience. And if you don't need the circulating pump to start at any time, just turn off the thermostatic function, and the theoretical value is 2 minutes, you can set the cycle time freely, unless it is a hopping structure, generally about 100 square meters of flat structure, 2 minutes is enough.

And most importantly, what are the main considerations for you to choose a circulating pump? To save energy? Oh, the power of a few kilowatts of small kitchen treasure, the maximum watt power of more than 100 watts of circulating pump, and only 2 minutes of work each time can bring hot water to the whole house, small kitchen treasure can only **install**hot water, which is more convenient, or which is energy saving and which is consuming energy?

If we want to save energy, shouldn't we use air conditioners, which is a big money-eater, but why do we all like air conditioners? Is it because it saves energy or because it is comfortable?

As long as it is not dry burning for a long time, there is basically no problem, because there is still some liquid in the pump body, and the temperature will not rise too high in a short time, so just turn off the power in time.

It is normal for the pump to heat up during the working process, because the friction inside the pump, the force on the liquid, and the heating of the motor will cause heat to be generated. Here are some of the reasons that can cause a circulating pump to heat up:

Motor heating: The drive motor of the pump generates heat during operation, which is due to Joule heating generated when the current passes through the motor coil. The load, efficiency, and heat dissipation of a motor all affect its heat generation.

Liquid friction: When the liquid flows through the inside of the pump, it will rub against the pump casing, impeller and other components, generating heat. Factors such as the viscosity of the liquid, the flow rate, and the design of the pump can all affect the heat generated by the friction of the liquid.

Bearing heating: The bearings of the pump are subjected to axial and radial loads during operation, generating heat due to friction. The load, lubrication and heat dissipation of a bearing all affect its heat generation.

Mechanical seal heating: The mechanical seal of the pump needs to keep the sealing surface in contact during operation, so frictional heat will be generated. Factors such as the design, material, and lubrication of a mechanical seal can all affect its heat generation.

If the circulating pump generates more heat than the normal range, it may affect the performance and life of the pump. Therefore, when the pump is found to be overheating, the operating conditions, load, lubrication and heat dissipation of the pump should be checked, and corresponding measures should be taken to adjust and improve. For example, ensuring that the pump is operating within the correct operating range, regularly checking and replacing the bearing bench lubricating oil, keeping the motor well ventilated and cooling, etc.