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Application of frequency converter in animal husbandry

Apr 03, 2021

Application of frequency converter in animal husbandry

Water is one of the necessities for the normal development of animal husbandry. If the quality of water used in pig farms is reduced or insufficient due to the neglect of water during the breeding process, the economic benefits will drop sharply and even the sustainable development of animal husbandry will be affected. Therefore, special attention should be paid to the selection of water supply equipment for animal husbandry. A pig farm in Jiangsu, China uses a set of constant pressure variable frequency water supply equipment to ensure the safety of the pig farm's water supply.

Pig farms are generally built in places away from cities, and water supply includes the steps of water extraction, storage, regulation, transportation and distribution. Therefore, Chuzhou pig farms generally use constant pressure variable frequency water supply equipment to meet their water supply needs when choosing water supply equipment.


Way of working


When the frequency conversion water supply equipment of the pig farm is running, the pressure sensor continuously collects the water pressure and water pressure change rate signals in the water supply pipe network, and converts them into electrical signals and sends them to the frequency conversion control system. The frequency conversion water supply equipment control system will feedback The signal is compared and calculated with the set pressure. If the actual pressure is lower than the set pressure, an instruction is issued to control the speed of the pump. If the actual pressure is higher than the set pressure, the pump is controlled to decelerate. When the set pressure is reached, the pump It is maintained at this operating frequency.


If the variable frequency water pump reaches the rated speed (frequency), after a certain period of judgment, if the pipe network pressure is still lower than the set pressure, the control system will switch the water pump to industrial frequency operation and start the next water pump at a variable frequency. Until the pipe network pressure reaches the set pressure. Conversely, if the water consumption of the system decreases, the frequency conversion water supply equipment of the non-negative pressure frequency conversion farm will instruct the pump to decelerate. When the speed is reduced to the effective speed of the pump, the pump that is started first among the running pumps will stop running, that is, reduce the pump cost. Run the number of units until the pipe network pressure is constant within the set pressure range.


The main pump stops working, and the auxiliary pump provides water supply with variable frequency and constant pressure, which further improves work efficiency and saves energy.


Selection and main parameters


Inverter model: 200mn


Motor power: 7.5KW

Host: F0.05=1; F0.06=1; F0.20=2;

Slave machine: F0.20=11

Advantages of using SAFESAVE-200mn inverter


The frequency conversion water supply equipment of the pig farm eliminates the impact and interference on the power grid when the pump motor is directly started, and the equipment control system has multiple protection functions such as short circuit, overcurrent, overvoltage, overload, undervoltage, overheating, etc., which greatly improves work efficiency , It prolongs the service life of the pump, and the price of 200mn is low, and the functional module is loaded properly, which is extremely suitable for the livestock industry, which is an industry that requires few functions.