| 主权项 |
1. A chemical delivery system, comprising:
a motive fluid source having a non-liquid motive fluid; a chemical source having an amount of a concentrated liquid chemical; a plurality of venturi injectors, each venturi injector having a motive fluid inlet fluidly connected to the motive fluid source, a concentrated chemical inlet comprising a check valve, the concentrated chemical inlet fluidly connected to the chemical source, and a dispensing outlet fluidly connected to a point of use, the non-liquid motive fluid inducing a vacuum condition within a mixing region of the venturi injector where the check valve opens in response to the vacuum condition and the concentrated liquid chemical is drawn into the mixing region and mixed with the non-liquid motive fluid to form an undiluted chemical dispersion for dispensing from the dispensing outlet; and a manifold defining a chemical supply flow pathway therein fluidly connecting the chemical source to the concentrated chemical inlet for each of the venturi injectors; and a plurality of connector blocks fluidly connected to the chemical supply flow pathway and selectively securable to the manifold, wherein each of the plurality of connector blocks is fluidly coupled to one venturi injector of the plurality of venturi injectors and selectively couples the one venturi injector to the manifold, wherein each of the plurality of connector blocks comprises:
a motive fluid connector fluidly coupled to the motive fluid inlet; anda chemical fluid connector fluidly coupled to the concentrated chemical inlet. |
