With the rise in people’s
demand for environmental protection, the purification
of dust and smoke has become a problem that should be
reckoned with seriously and weighed heavier and heavier
in people’s mind.
Electric dust precipitation is an accepted electric dust
precipitation way in recent years. The increase of its
efficiency can effectively protect the environment, raise
the operating cycle of the equipment, save cost of maintenance,
and cut down the energy consuming.
According to the working principle of the electric dust
precipitation machine, its efficiency depends on the quality
of its power supply, which is influenced by its own load
voltage. Therefore, the load voltage should be ensured
if its efficiency is expected to be excellent. And finally,
the operational aspect of the high-tension power supply
is the key.
At present, in China there are a lot of methods for the
control of the high-tension power supply, such as silicon
rectifying current supply, pulse power supply, constant
current power supply, medium-high frequency power supply
and so on. Since nowadays a fair proportion of enterprises
still use the silicon controlled to control and adjust
the pressure, basing on the idea that no change of the
original operational aspect of the equipment, no increasing
new operation procedures, our research aims to overcome
the shortcomings of this method such as lack of electric
pressure, overvoltage, inefficiency in electric dust precipitation,
bring spark breakdown, and difficult control over corona
current by controlling the rectify current equipment for
high-tension electric dust precipitation with the aid
of microcomputer. Improved control system has higher autotracking
ability and good control feature, can follow change of
electric field and can output the best corona power and
also has good device protection function without overmuch
demands for operating instructions, and can execute operation
at will without failure of device under outer wiring be
correctly connected.
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