| 摘要 |
<p>PURPOSE: To make it possible to transport conductive liquids while electrically insulating the same by successively packing prescribed quantities of the liquids into a first metering valve, sending the liquids to pumps, a second metering valve and a spraying device and preventing the liquids from simultaneously arriving at the first and second metering valves. CONSTITUTION: The liquid from a container 12 in which a large quantity of the liquid to be sprayed is housed is forcibly fed into the first metering valve 20 via a control valve 14, is further transported to a diaphragm pump 30 and is transported to the second metering valve 40 via a control valve 34. The liquid is transported to an accumulator 50 from the second metering valve 40 and is further transported to the spraying device 60. High voltage is impressed to the liquid in the accumulator 50 or the high voltage is impressed directly to the spraying device 60. While such cycles are repeated, the electrical insulation is maintained between the liquid in the first metering valve 20 and the liquid in the second metering valve 40 by selectively driving the diaphragm pump 30.</p> |
