A Gas Negative Pressure Power Regulation System with Fault Diagnosis Function and The Design of Diagnosis Method

Combining the characteristics of traditional negative pressure power regulation system, this paper designs a negative pressure power regulation system with fault diagnosis function. When the system is faulty, it can accurately locate the faulty parts to facilitate timely maintenance treatment and improve the efficiency of system troubleshooting; the double insurance design of shut-off valve and gas commutator is adopted for each vacuum pump inlet to prevent the negative pressure power unit from leaking and having an adverse impact on the whole negative pressure power regulation system; the negative pressure power unit is easy to maintain separately and does not affect the normal use of the system; the system can realize the precise control of system negative pressure power regulation, effectively improve troubleshooting efficiency and reduce energy consumption. The design can be realized on the original device through upgrading and transformation, which has good practical and promotional value.