English

PLC multi-point hydraulic synchronous lifting system is used for substation house inclination correction project

Our company's PLC multi-point hydraulic synchronous lifting system has successfully completed the lifting and deviation correction project of the No. 1 substation, and completed the house inclination correction under the condition of ensuring the normal operation of the No. 1 substation. The cumulative deviation correction value reached 44‰, the maximum The lifting capacity is 886mm! Congratulations to the cooperative unit.

Substation correction introduction:

The substation is a double-layer concrete frame structure. According to the measurement of the construction party: the southeast corner and the southwest corner are inclined to different degrees, and there is basically no inclination in the east-west direction. According to the analysis, the main reason for the inclination is the uneven settlement of the substratum under the foundation. In order not to affect normal production, the substation is required to rectify deviations during normal use, and to ensure that the building inclination rate is controlled within a reasonable range after rectification.

Project construction steps:

Comparison chart before and after correction

Firstly, according to the architectural drawings of the building, determine the weighing point, then according to the weight of the building, determine the tonnage and quantity of the large-tonnage jacks used in the project, and then evenly arrange them around the building according to the shape of the building. Use the PLC multi-point hydraulic synchronous lifting system to synchronously lift the jack.

Equipment List:

Introduction of hydraulic synchronous lifting system:

Frequency control PLC hydraulic synchronous lifting system

Single acting large tonnage jack

Mechanical support

Introduction of hydraulic synchronous lifting system:

Working power supply: AC380V/50Hz, three-phase five-wire system.

System pressure: 70Mpa.

Control accuracy: ≤±0.2mm.

Display mode: man-machine interface.

Pressure sensor: input DC24V, range 0-70Mpa, output 4-20mA.

Displacement sensor: measuring range 1000mm, measurement accuracy 0.5%, working voltage 24VDC, push-pull output.

Control power supply: DC24V.

Display accuracy: 1%.

Control mode: frequency conversion speed control.

Post time: Jan-19-2022