| 摘要 |
PROBLEM TO BE SOLVED: To obtain a two-liquid spray device capable of widening a control range of a relationship between a flow rate and a pressure using a general-purpose instrument, achieving a maintenance-free spray device with high reliability, and obtaining high precision and stable pressure.SOLUTION: The two-liquid spray device comprises: at least first and second liquid supply systems which pressurize a liquid pressure supplied from a common liquid supply source further and supply the resultant pressure to a two-fluid nozzle; and liquid pressure control means for controlling the liquid pressure constant by compression gas from a compression gas supply system such that the pressure of the compression gas from the compression gas supply system can be applied to each liquid supply system. In the two-liquid spray device, any one of the liquid supply systems supplies the liquid to the two-liquid nozzle while supplying the compression gas, and the remaining liquid supply system performs replenishment of the liquid from the liquid supply source, when the liquid supply is performed. |
