Device and system for automatically adjusting and controlling pipeline resistance of coal-fired boiler

The invention belongs to the technical field of coal-fired boilers, and provides a coal-fired boiler pipeline resistance automatic adjusting control device and system.The device comprises a boiler pipeline, a first pressure collecting module is fixedly installed at one end of the boiler pipeline, and a second pressure collecting module is fixedly installed at the other end of the boiler pipeline; an air supply pipe is arranged on the boiler pipeline and is positioned between the first pressure acquisition module and the second pressure acquisition module; the system comprises a boiler pipeline, a first pressure collecting module, a second pressure collecting module, an air supply pipe, a first air blocking mechanism, a second air blocking mechanism, a third air blocking mechanism and a PLC. According to the coal-fired boiler pipeline resistance automatic adjusting and controlling device and system, the pressure difference between the two ends of the boiler pipeline is within the preset range, the pressure val