| 摘要 |
<p>The spray system, consisting of a main tank (2) of a carrier medium such as water, one or more tanks (4, 8) of chemical products to be added to the carrier medium, a pump (10) and a spray bar (12), has a graduated depression generator (34), e.g. in the form of a non-return valve, jet or filter, between the output of the main tank and the intake of the pump. Each of the chemical product tanks (4, 8) is connected to an injection line (18) between the main tank and pump by an injector (38, 42), with a rinsing water injector (40) between them.</p> |
