A JET VACUUM SYSTEM WITHOUT POWER

摘要

A non-power jet vacuum system is provided to operate a pump using the power remaining within a pipe even if the pump can be operated due to the power outage. A non-power jet vacuum system comprises: a pump(11) pulling the fluid up; a jet nozzle(21) filling the inside of the pump with the water for the initial move of the pump; and a vacuum tank(13) connected between the pump and the jet nozzle. The vacuum tank keeps vacuum degree the pump higher than a standard value although the air leaks out. One of a leading-in pipe is connected to the vacuum tank through a pipe. The other one of the leading-in pipe is connected to the pipe connected at a back end part of a pump discharging hole. The air of the pump inside is discharged to an exhaust line in order to be removed by the pressure difference generated while the fluid is ejected.