140CPU67160C Realization of Control Functions

140CPU67160C Realization of Control Functions

140CPU67160C As water consumption varies greatly so that the network pressure fluctuations are very large, when the water consumption is small, even if only one pump network pressure can still reach 0.35Mpa, resulting in the network holding pressure caused by energy waste. When the water consumption is large, and must open two or even three to meet the process requirements, which requires job personnel to observe the network pressure from time to time, and according to the situation of manual power on and off, so that not only the pressure changes and regulation of the lag, but also a waste of energy, but also may result in insufficient water supply to affect the production of other situations.

140CPU67160C require higher pressure to meet the needs of firefighting, often after a fire, by the discovery of fire personnel notify the power duty officer, and then by the power duty officer to the pump room to open the pump to increase pressure, due to the process of more than one, can not be increased in time to pressure, water supply is insufficient to affect the work of the fight, it is likely that delay in the timing of the situation caused by a more unfavorable situation, the consequences may be unmanageable.

140CPU67160C Normal production, three pumps running in parallel to achieve constant pressure water supply; fire, through the arrangement of fire control buttons in each workshop to realize the immediate opening of the other two fire pumps pressurization, to ensure that the production, fire both. The system is coordinated by a LOGO! programming controller, the site pressure signal is sampled by the pressure transmitter and sent to the pressure controller to compare with the set value, and the comparison generates a pressure signal to the frequency converter for pressure regulation. If the frequency converter can not meet the pressure regulation, the pressure controller produces high and low alarm signals to LOGO! Programming controller to start and stop the corresponding pumps to ensure stable pressure.