초록 ▼

Retrofit systems are provided to convert existing automated vehicle washing systems from using conventional car wash chemicals to highly concentrated chemicals. The retrofit systems enable the concentrated chemicals to be pre-diluted before they are mixed with water from the main water supply. The t

Retrofit systems are provided to convert existing automated vehicle washing systems from using conventional car wash chemicals to highly concentrated chemicals. The retrofit systems enable the concentrated chemicals to be pre-diluted before they are mixed with water from the main water supply. The two systems provided enable the operators of existing car washes to convert from conventional chemicals to highly concentrated chemicals without purchasing an excessive amount of new equipment or carrying out extensive modifications of existing equipment. A novel feature of one embodiment of the present invention includes the use of pre-dilution block for mixing highly concentrated chemical with pre-dilution water prior to the introduction of the mixture to the spray arch where it is diluted again with water from the main water supply. A second embodiment includes the pre-dilution of concentrated chemical twice before it is introduced to the spray arch where it is again diluted with water from the main water supply.

대표청구항 ▼

A system for diluting concentrate with water twice prior to the application of said concentrate to vehicles comprising: a concentrate reservoir containing concentrate; a pre-dilution water reservoir containing water to be pre-mixed with the concentrate; a pre-dilution block for mixing water from the

A system for diluting concentrate with water twice prior to the application of said concentrate to vehicles comprising: a concentrate reservoir containing concentrate; a pre-dilution water reservoir containing water to be pre-mixed with the concentrate; a pre-dilution block for mixing water from the pre-dilution water reservoir with the concentrate; the concentrate reservoir being in fluid communication with the pre-dilution block, the pre-dilution water reservoir being in fluid communication with the pre-dilution block; the pre dilution block including a concentrate input passage and a pre-dilution water input passage, the concentrate input passage and the pre-dilution water input passage being connected to a common output passage through which a mixture of concentrate and pre-dilution water passes, the pre-dilution block including a single means for regulating a flow of pre-dilution water through the pre-dilution water input passage, the single means for regulating a flow of pre-dilution water through the pre-dilution water input passage is a stem valve including threaded stem valve that is threadably connected to the pre-dilution block, a lower end of the threaded stem valve extending into the pre-dilution water input passage, the pre-dilution water input passage further including a seal that can engage the lower end of the threaded stem valve to shut off the flow of pre-dilution water through the pre-dilution water input passage; the output passage of the pre-dilution block being in fluid communication with a feed pump; concentrate and pre-dilution water being drawn by the feed pump through the concentrate input passage and through the pre-dilution water input passage respectively before concentrate and pre-dilution water are mixed in the common output passage of the pre-dilution block before the mixture of concentrate and pre-dilution water is pumped through the feed pump to a first input passage of a spray arch; the spray arch including a second input passage in fluid communication with a main water supply, the mixture of concentrate and pre-dilution water from the feed pump being mixed with water from the main water supply in the spray arch before passing out of the spray arch through a plurality of spray nozzles.