125kw Low Frequency 5hz Constant Pressure Liquid Supply System

Scope of application

Green mine intelligent heart CPFO^TM low frequency constant pressure liquid supply system, applied to the coal emulsion pump station

Core technology

(1)PID dynamic adjustment of intelligent drive

The PID dynamic adjustment of the intelligent drive makes the actual pressure of the pipe network consistent with the set pressure, so as to achieve the effect of constant pressure liquid supply system, and the pressure fluctuation range is around 1%.

2. Low-frequency constant torque operation

The special intelligent industrial motor can work stably under 5Hz, and the torque output follows well when the load changes. The current is in the rated range, and there is no current impact on the power grid.

3. Automatic switching according to load and working mode

According to the load changes automatically adjust the output frequency, automatic control of multi-machine working mode and stop, switch

Advantages

1. Save energy by over 40%

As the emulsion pump station operates continuously for 24 hours, with no load for 70%-80% of the time, the space for energy saving is large.

2. Low noise and low temperature

Using low frequency working mode, the noise of emulsion pump is reduced by 50% and temperature rise by 40%.

3. Pump life extended more than three times

Low-speed operation reduces mechanical wear and extends the life of the pump head.

4. Extend the seal life of the bracket

The emulsion pump works at a low speed, which greatly reduces the temperature of the emulsion and extends the life of the seal.

(5) Prolong the life of hydraulic pipe fitting and hydraulic valve

Constant pressure working mode, so that the hydraulic pipeline no pulse phenomenon.

Product system

It is composed of professional low-frequency intelligent industrial motor, special driver and data acquisition system. The PID dynamic adjustment of the special intelligent driver can detect the pressure signal of the pipe network from time to time, and compare with the pressure setting signal. The output frequency of the intelligent driver can be adjusted to make the actual pressure of the pipe network consistent with the set pressure, so as to achieve the effect of constant pressure liquid supply in the system, and the pressure fluctuation range is around 1%.

① Intelligent emulsion pump station

② Automatic dispensing tank

③Emulsion tank

④Underground automatic water supply station

⑤Inlet backwash filter station

⑥The liquid back flush filter station

⑦Low frequency constant pressure fluid supply technology

(1)Intelligent industrial motor for low frequency

It can work stably at a frequency of 5Hz for a long time.

It can meet the condition that the load changes frequently.

(2)Dedicated intelligent driver

Driving system Patent No. :ZL201720963901X

Patent Algorithm Patent No.:ZL2015 2 1027323.6

(3)System data acquisition

Accurately collect the pressure of the emulsion system and transfer it to the driver for dynamic PID adjustment

JXS-B series common specifications for low frequency special intelligent industrial motors

Emulsion pump series

The motor power

Voltage grade