When the screw vacuum pump fails to start, do not tamper with it to avoid greater failure of the equipment. Seek professional personnel for maintenance in time. However, the specific reason for the screw vacuum pump's sudden failure to start is not clear, so find the root cause to solve so as to avoid this situation again.
Screw vacuum pump is a kind of suction and exhaust equipment, which uses a pair of screws to make synchronous and high-speed reverse rotation in the pump shell. It can pump out gas occasions with a large amount of water vapor and a small amount of dust.
1. If the screw vacuum pump is stuck during the first pump test and cannot be started and operated, it is generally considered whether there are metal foreign matters (such as screws, welding slag, etc.) falling into the pump during the pipeline connection and installation, which cause the pump to be stuck and cannot be started and operated.
2. During normal use, the pump can't be started again after shutdown, generally because the condensed materials in the extracted gas stay in the pump body and solidify under normal temperature, resulting in the adhesion between the two rotors and between the rotor and the pump body, or because too much dust in the extracted gas stays in the pump body to squeeze the rotor and can't rotate.
3. If the vacuum pump can not be started and operated, generally do not disassemble the pump body first. If there is any foreign matter, try to manually reverse and take out the foreign matter. After using the pump, try to use solvent dissolution treatment. If it is impossible to solve, consider disassembling the pump body for cleaning.
In order to solve the problem that the screw vacuum pump cannot be started, it is also necessary to prevent the screw vacuum pump from being unable to start and operate. First of all, it is necessary to ensure that no foreign matters fall into the pump body during the installation. When there is dust and condensed material gas pumped out, purging measures are required.
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