is the use of expansion source and control set. On the other hand, booster pump automation is done through the electrical panel, which we will continue to introduce the types of booster pump electrical panel.
✳️ Fixed round pump booster ✳️
In booster pumps whose control system is a fixed circuit board, a pressure switch is used to automate the pump. In this method, a minimum pressure and a maximum initial pressure are determined for the pressure switch.
That is, when water is consumed (opening the faucet), its pressure drops, and when the system pressure reaches the specified minimum pressure; The first pump enters the system and when it turns on, it tries to supply the pressure drop. After supplying the pressure to a certain level (the maximum set pressure), the pressure switch orders the pump to turn off and this condition continues. finds to always maintain the balance of water pressure in the system.
However, in booster pumps, a pressure switch is installed for each pump, and if the pressure drop is such that the first pump cannot provide the required pressure alone, the second pump and the following pumps enter the circuit in the same way. are used to provide system pressure drop. As a result, pressure switches play a very important role in ordering the pumps in place and on time. There are two modes in booster pumps with constant speed, as the name suggests; It turns on with its maximum power or it is off and out of the circuit, and there is no speed between these two. These pump starts will eventually reduce its life span and can cause ram impact in the pipelines. Because the pump needs a voltage of about 7 times its normal voltage to work, and each time this voltage is applied, it puts a lot of pressure on the engine. Apart from the fact that if the pressure is too high, the pump heats up and This heating can lead to flood damage and water penetration into the engine, if the voltage is not enough, the pump will not turn on at all and will not enter the circuit to supply water pressure.
"Booster Pump Fixed Booster Command Circuit"
In a booster pump with a constant speed control system, it is important that the pressure of the pressure switch is set correctly and carefully. Since these pressure changes are very important, it is better to get help from a pressurized source in these systems so that if the pressure is not adjusted accurately, the tank can absorb the excess pressure created and prevent the said excess pressure from entering the components. the system and possible damages.
Today, in some water supply systems with fixed round electrical panels, two pressure switches are used for each pump; One for minimum pressure and another for maximum pressure to minimize possible errors. In addition, in some cases, a flow switch is installed in the booster pump to ensure the presence of water in the domestic water pump and to make sure that the pump does not work without water.
Using the pressure switch is important because the pumps used in making booster pumps are expensive and if the pump continues to work without water, the motor will heat up and due to the failure of the flood, the water It enters the engine and causes it to burn. Therefore, it is better to protect yourself from possible and heavy costs in the future for repairs and replacement of parts by spending such initial costs.
In addition, other equipment that manufacturers use in the construction of constant speed pump boosters is the reduction valve. It is pressure. Since the constant speed pump booster cannot keep the pressure constant at a certain point; The pressure may rise too much, and here the mentioned valve restrains the excess pressure so that it does not enter the connections and prevent possible disasters.
✳️ Variable round pump booster
In variable speed booster pumps, inverters or frequency drives are used to control and automate the pumps. In these boosters, in contrast to the fixed speed type where the pumps are turned on suddenly and then turned off, the pressure changes in them are very smooth and thus the water pressure always remains constant and within the desired range of the user.
"Variable Return Pump Booster Power"
Variable round power tap is adjusted based on water pressure changes and depending on the pressure drop, it enters the necessary frequency to the pump and drives the pump motor to the extent that only the pressure drop is provided. On the other hand, gradually as the pressure increases in the system, the switchboard reduces the variable frequency circuit so that the pump is no longer needed and the pump is removed from the system.
As a result, the switchboard Variable speed, unlike fixed speed, we don't have sudden turning off and on of the pump, and there is never any extra pressure, so we don't need to install a pressurized source or a pressure relief valve to relieve extra pressure.
The design and construction of variable speed booster pumps and system controller is complex. In this system, they no longer use only one pressure switch to check the system pressure changes and turn the pump on and off, but the pressure changes are completely checked and from the lowest pressure drop values to the highest amount of consumption is provided with the help of pumps.
