| 摘要 |
<p>A modular apparatus (10) far preparing dilute chemical composi- tions at the point of use, e.g., a customers's plant, is disclosed. The ap- paratus has upstream and downstream ends and includes an axial mani- fold (52) having a plurality of inlet ports extending radially toward the center of the manifold, a valve (53) operatively connected to each inlet port, component supply conduits (18) operatively connected to the valve (53), at least one component supply vessel heater (23) proximate at least one liquid component supply container (12), a pump (56) in fluid com- munication with the manifold (52) to draw the liquid components into and through the manifold (52), a microprocessor controller (11) in com- munication with the valves (53 and 61) and pump (56), a flowmeter (60) in communication with the microprocessor (11) downstream of the man- ifold (52), a three-way valve (61) in fluid communication with the pump (55), and a container (70) which is in fluid communication with the three-way valve (61) in which the chemical composition is formed. Also disclosed is a method for dispensing aqueous cleaning compositions at a point of use.</p> |
